/*
 * jQuery JavaScript Library v1.3.2
 * http://jquery.com/
 *
 * Copyright (c) 2009 John Resig
 * Dual licensed under the MIT and GPL licenses.
 * http://docs.jquery.com/License
 *
 * Date: 2009-02-19 17:34:21 -0500 (Thu, 19 Feb 2009)
 * Revision: 6246
 */
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J=this[0],G=J.offsetParent,F=J,O=J.ownerDocument,M,H=O.documentElement,K=O.body,L=O.defaultView,E=L.getComputedStyle(J,null),N=J.offsetTop,I=J.offsetLeft;while((J=J.parentNode)&&J!==K&&J!==H){M=L.getComputedStyle(J,null);N-=J.scrollTop,I-=J.scrollLeft;if(J===G){N+=J.offsetTop,I+=J.offsetLeft;if(o.offset.doesNotAddBorder&&!(o.offset.doesAddBorderForTableAndCells&&/^t(able|d|h)$/i.test(J.tagName))){N+=parseInt(M.borderTopWidth,10)||0,I+=parseInt(M.borderLeftWidth,10)||0}F=G,G=J.offsetParent}if(o.offset.subtractsBorderForOverflowNotVisible&&M.overflow!=="visible"){N+=parseInt(M.borderTopWidth,10)||0,I+=parseInt(M.borderLeftWidth,10)||0}E=M}if(E.position==="relative"||E.position==="static"){N+=K.offsetTop,I+=K.offsetLeft}if(E.position==="fixed"){N+=Math.max(H.scrollTop,K.scrollTop),I+=Math.max(H.scrollLeft,K.scrollLeft)}return{top:N,left:I}}}o.offset={initialize:function(){if(this.initialized){return}var L=document.body,F=document.createElement("div"),H,G,N,I,M,E,J=L.style.marginTop,K='<div style="position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;"><div></div></div><table style="position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;" cellpadding="0" cellspacing="0"><tr><td></td></tr></table>';M={position:"absolute",top:0,left:0,margin:0,border:0,width:"1px",height:"1px",visibility:"hidden"};for(E in M){F.style[E]=M[E]}F.innerHTML=K;L.insertBefore(F,L.firstChild);H=F.firstChild,G=H.firstChild,I=H.nextSibling.firstChild.firstChild;this.doesNotAddBorder=(G.offsetTop!==5);this.doesAddBorderForTableAndCells=(I.offsetTop===5);H.style.overflow="hidden",H.style.position="relative";this.subtractsBorderForOverflowNotVisible=(G.offsetTop===-5);L.style.marginTop="1px";this.doesNotIncludeMarginInBodyOffset=(L.offsetTop===0);L.style.marginTop=J;L.removeChild(F);this.initialized=true},bodyOffset:function(E){o.offset.initialized||o.offset.initialize();var G=E.offsetTop,F=E.offsetLeft;if(o.offset.doesNotIncludeMarginInBodyOffset){G+=parseInt(o.curCSS(E,"marginTop",true),10)||0,F+=parseInt(o.curCSS(E,"marginLeft",true),10)||0}return{top:G,left:F}}};o.fn.extend({position:function(){var I=0,H=0,F;if(this[0]){var G=this.offsetParent(),J=this.offset(),E=/^body|html$/i.test(G[0].tagName)?{top:0,left:0}:G.offset();J.top-=j(this,"marginTop");J.left-=j(this,"marginLeft");E.top+=j(G,"borderTopWidth");E.left+=j(G,"borderLeftWidth");F={top:J.top-E.top,left:J.left-E.left}}return F},offsetParent:function(){var E=this[0].offsetParent||document.body;while(E&&(!/^body|html$/i.test(E.tagName)&&o.css(E,"position")=="static")){E=E.offsetParent}return o(E)}});o.each(["Left","Top"],function(F,E){var G="scroll"+E;o.fn[G]=function(H){if(!this[0]){return null}return H!==g?this.each(function(){this==l||this==document?l.scrollTo(!F?H:o(l).scrollLeft(),F?H:o(l).scrollTop()):this[G]=H}):this[0]==l||this[0]==document?self[F?"pageYOffset":"pageXOffset"]||o.boxModel&&document.documentElement[G]||document.body[G]:this[0][G]}});o.each(["Height","Width"],function(I,G){var E=I?"Left":"Top",H=I?"Right":"Bottom",F=G.toLowerCase();o.fn["inner"+G]=function(){return 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var Drupal = Drupal || { 'settings': {}, 'behaviors': {}, 'themes': {}, 'locale': {} };

/**
 * Set the variable that indicates if JavaScript behaviors should be applied
 */
Drupal.jsEnabled = document.getElementsByTagName && document.createElement && document.createTextNode && document.documentElement && document.getElementById;

/**
 * Attach all registered behaviors to a page element.
 *
 * Behaviors are event-triggered actions that attach to page elements, enhancing
 * default non-Javascript UIs. Behaviors are registered in the Drupal.behaviors
 * object as follows:
 * @code
 *    Drupal.behaviors.behaviorName = function () {
 *      ...
 *    };
 * @endcode
 *
 * Drupal.attachBehaviors is added below to the jQuery ready event and so
 * runs on initial page load. Developers implementing AHAH/AJAX in their
 * solutions should also call this function after new page content has been
 * loaded, feeding in an element to be processed, in order to attach all
 * behaviors to the new content.
 *
 * Behaviors should use a class in the form behaviorName-processed to ensure
 * the behavior is attached only once to a given element. (Doing so enables
 * the reprocessing of given elements, which may be needed on occasion despite
 * the ability to limit behavior attachment to a particular element.)
 *
 * @param context
 *   An element to attach behaviors to. If none is given, the document element
 *   is used.
 */
Drupal.attachBehaviors = function(context) {
  context = context || document;
  if (Drupal.jsEnabled) {
    // Execute all of them.
    jQuery.each(Drupal.behaviors, function() {
      this(context);
    });
  }
};

/**
 * Encode special characters in a plain-text string for display as HTML.
 */
Drupal.checkPlain = function(str) {
  str = String(str);
  var replace = { '&': '&amp;', '"': '&quot;', '<': '&lt;', '>': '&gt;' };
  for (var character in replace) {
    var regex = new RegExp(character, 'g');
    str = str.replace(regex, replace[character]);
  }
  return str;
};

/**
 * Translate strings to the page language or a given language.
 *
 * See the documentation of the server-side t() function for further details.
 *
 * @param str
 *   A string containing the English string to translate.
 * @param args
 *   An object of replacements pairs to make after translation. Incidences
 *   of any key in this array are replaced with the corresponding value.
 *   Based on the first character of the key, the value is escaped and/or themed:
 *    - !variable: inserted as is
 *    - @variable: escape plain text to HTML (Drupal.checkPlain)
 *    - %variable: escape text and theme as a placeholder for user-submitted
 *      content (checkPlain + Drupal.theme('placeholder'))
 * @return
 *   The translated string.
 */
Drupal.t = function(str, args) {
  // Fetch the localized version of the string.
  if (Drupal.locale.strings && Drupal.locale.strings[str]) {
    str = Drupal.locale.strings[str];
  }

  if (args) {
    // Transform arguments before inserting them
    for (var key in args) {
      switch (key.charAt(0)) {
        // Escaped only
        case '@':
          args[key] = Drupal.checkPlain(args[key]);
        break;
        // Pass-through
        case '!':
          break;
        // Escaped and placeholder
        case '%':
        default:
          args[key] = Drupal.theme('placeholder', args[key]);
          break;
      }
      str = str.replace(key, args[key]);
    }
  }
  return str;
};

/**
 * Format a string containing a count of items.
 *
 * This function ensures that the string is pluralized correctly. Since Drupal.t() is
 * called by this function, make sure not to pass already-localized strings to it.
 *
 * See the documentation of the server-side format_plural() function for further details.
 *
 * @param count
 *   The item count to display.
 * @param singular
 *   The string for the singular case. Please make sure it is clear this is
 *   singular, to ease translation (e.g. use "1 new comment" instead of "1 new").
 *   Do not use @count in the singular string.
 * @param plural
 *   The string for the plural case. Please make sure it is clear this is plural,
 *   to ease translation. Use @count in place of the item count, as in "@count
 *   new comments".
 * @param args
 *   An object of replacements pairs to make after translation. Incidences
 *   of any key in this array are replaced with the corresponding value.
 *   Based on the first character of the key, the value is escaped and/or themed:
 *    - !variable: inserted as is
 *    - @variable: escape plain text to HTML (Drupal.checkPlain)
 *    - %variable: escape text and theme as a placeholder for user-submitted
 *      content (checkPlain + Drupal.theme('placeholder'))
 *   Note that you do not need to include @count in this array.
 *   This replacement is done automatically for the plural case.
 * @return
 *   A translated string.
 */
Drupal.formatPlural = function(count, singular, plural, args) {
  var args = args || {};
  args['@count'] = count;
  // Determine the index of the plural form.
  var index = Drupal.locale.pluralFormula ? Drupal.locale.pluralFormula(args['@count']) : ((args['@count'] == 1) ? 0 : 1);

  if (index == 0) {
    return Drupal.t(singular, args);
  }
  else if (index == 1) {
    return Drupal.t(plural, args);
  }
  else {
    args['@count['+ index +']'] = args['@count'];
    delete args['@count'];
    return Drupal.t(plural.replace('@count', '@count['+ index +']'));
  }
};

/**
 * Generate the themed representation of a Drupal object.
 *
 * All requests for themed output must go through this function. It examines
 * the request and routes it to the appropriate theme function. If the current
 * theme does not provide an override function, the generic theme function is
 * called.
 *
 * For example, to retrieve the HTML that is output by theme_placeholder(text),
 * call Drupal.theme('placeholder', text).
 *
 * @param func
 *   The name of the theme function to call.
 * @param ...
 *   Additional arguments to pass along to the theme function.
 * @return
 *   Any data the theme function returns. This could be a plain HTML string,
 *   but also a complex object.
 */
Drupal.theme = function(func) {
  for (var i = 1, args = []; i < arguments.length; i++) {
    args.push(arguments[i]);
  }

  return (Drupal.theme[func] || Drupal.theme.prototype[func]).apply(this, args);
};

/**
 * Parse a JSON response.
 *
 * The result is either the JSON object, or an object with 'status' 0 and 'data' an error message.
 */
Drupal.parseJson = function (data) {
  if ((data.substring(0, 1) != '{') && (data.substring(0, 1) != '[')) {
    return { status: 0, data: data.length ? data : Drupal.t('Unspecified error') };
  }
  return eval('(' + data + ');');
};

/**
 * Freeze the current body height (as minimum height). Used to prevent
 * unnecessary upwards scrolling when doing DOM manipulations.
 */
Drupal.freezeHeight = function () {
  Drupal.unfreezeHeight();
  var div = document.createElement('div');
  $(div).css({
    position: 'absolute',
    top: '0px',
    left: '0px',
    width: '1px',
    height: $('body').css('height')
  }).attr('id', 'freeze-height');
  $('body').append(div);
};

/**
 * Unfreeze the body height
 */
Drupal.unfreezeHeight = function () {
  $('#freeze-height').remove();
};

/**
 * Wrapper around encodeURIComponent() which avoids Apache quirks (equivalent of
 * drupal_urlencode() in PHP). This function should only be used on paths, not
 * on query string arguments.
 */
Drupal.encodeURIComponent = function (item, uri) {
  uri = uri || location.href;
  item = encodeURIComponent(item).replace(/%2F/g, '/');
  return (uri.indexOf('?q=') != -1) ? item : item.replace(/%26/g, '%2526').replace(/%23/g, '%2523').replace(/\/\//g, '/%252F');
};

/**
 * Get the text selection in a textarea.
 */
Drupal.getSelection = function (element) {
  if (typeof(element.selectionStart) != 'number' && document.selection) {
    // The current selection
    var range1 = document.selection.createRange();
    var range2 = range1.duplicate();
    // Select all text.
    range2.moveToElementText(element);
    // Now move 'dummy' end point to end point of original range.
    range2.setEndPoint('EndToEnd', range1);
    // Now we can calculate start and end points.
    var start = range2.text.length - range1.text.length;
    var end = start + range1.text.length;
    return { 'start': start, 'end': end };
  }
  return { 'start': element.selectionStart, 'end': element.selectionEnd };
};

/**
 * Build an error message from ahah response.
 */
Drupal.ahahError = function(xmlhttp, uri) {
  if (xmlhttp.status == 200) {
    if (jQuery.trim($(xmlhttp.responseText).text())) {
      var message = Drupal.t("An error occurred. \n@uri\n@text", {'@uri': uri, '@text': xmlhttp.responseText });
    }
    else {
      var message = Drupal.t("An error occurred. \n@uri\n(no information available).", {'@uri': uri, '@text': xmlhttp.responseText });
    }
  }
  else {
    var message = Drupal.t("An HTTP error @status occurred. \n@uri", {'@uri': uri, '@status': xmlhttp.status });
  }
  return message;
}

// Global Killswitch on the <html> element
if (Drupal.jsEnabled) {
  // Global Killswitch on the <html> element
  $(document.documentElement).addClass('js');
  // 'js enabled' cookie
  document.cookie = 'has_js=1; path=/';
  // Attach all behaviors.
  $(document).ready(function() {
    Drupal.attachBehaviors(this);
  });
}

/**
 * The default themes.
 */
Drupal.theme.prototype = {

  /**
   * Formats text for emphasized display in a placeholder inside a sentence.
   *
   * @param str
   *   The text to format (plain-text).
   * @return
   *   The formatted text (html).
   */
  placeholder: function(str) {
    return '<em>' + Drupal.checkPlain(str) + '</em>';
  }
};
;
$(document).ready(function(){
  //$(".coredogs_legend div").hide();
  $(".coredogs_collapsible_legend_collapsed").each(function(){
    this.onclick = function() {
//alert('oop')
      var legend = $(this);
      var owned = $(this).next();
      if ( legend.hasClass("coredogs_collapsible_legend_collapsed") ) {
        legend.removeClass("coredogs_collapsible_legend_collapsed");
        legend.addClass("coredogs_collapsible_legend_expanded");
        owned.slideToggle(600, function() {
          owned.removeClass("coredogs_collapsible_owned_collapsed");
          owned.addClass("coredogs_collapsible_owned_expanded");
        });
      }
      else {
        legend.removeClass("coredogs_collapsible_legend_expanded");
        legend.addClass("coredogs_collapsible_legend_collapsed");
        owned.slideToggle(600, function() {
          owned.removeClass("coredogs_collapsible_owned_expanded");
          owned.addClass("coredogs_collapsible_owned_collapsed");
        });
      }
    }
  })
});
;
// $Id: feedback.js,v 1.3.2.2 2010/01/08 22:21:11 sun Exp $

/**
 * Attach auto-submit to admin view form.
 */
Drupal.behaviors.feedbackAdminForm = function (context) {
  $('#feedback-admin-view-form:not(.feedback-processed)', context).addClass('feedback-processed').each(function () {
    $(this).find('fieldset.feedback-messages :input[type="checkbox"]').click(function () {
      this.form.submit();
    });
  });
};

/**
 * Attach collapse behavior to the feedback form block (once).
 */
Drupal.behaviors.feedbackForm = function (context) {
  $('#block-feedback-form:not(.feedback-processed)', context).addClass('feedback-processed').each(function () {
    var $block = $(this);
    $block.find('span.feedback-link')
      .prepend('<span id="feedback-form-toggle">[ + ]</span> ')
      .css('cursor', 'pointer')
      .toggle(function () {
          Drupal.feedbackFormToggle($block, false);
        },
        function() {
          Drupal.feedbackFormToggle($block, true);
        }
      );
    $block.find('form').hide()
      .find(':input[name="ajax"]').val(1).end()
      .submit(function() {
        // Toggle throbber/button.
        $('#feedback-throbber', this).addClass('throbbing');
        $('#feedback-submit', this).fadeOut('fast', function () {
          Drupal.feedbackFormSubmit($(this).parents('form'));
        });
        return false;
      });
    $block.show();
  });
};

/**
 * Collapse or uncollapse the feedback form block.
 */
Drupal.feedbackFormToggle = function ($block, enable) {
  $block.find('form').slideToggle('medium');
  if (enable) {
    $('#feedback-form-toggle', $block).html('[ + ]');
  }
  else {
    $('#feedback-form-toggle', $block).html('[ &minus; ]');
  }
};

/**
 * Collapse or uncollapse the feedback form block.
 */
Drupal.feedbackFormSubmit = function ($form) {
  $.post($form.get(0).action, $form.serialize(), function (data) {
    // Collapse the form.
    $('#block-feedback-form').find('.feedback-link').click();
    // Display status message.
    $form.parent().parent().append('<div id="feedback-status-message">' + data.message + '</div>');
    // Reset form values.
    $(':input[name="message"]', $form).val('');
    $('#feedback-throbber', $form).removeClass('throbbing');
    $('#feedback-submit', $form).show();
    // Blend out status message.
    window.setTimeout(function () {
      $('#feedback-status-message').fadeOut('slow', function () {
        $(this).remove();
      });
    }, 3000);
  }, 'json');
  return false;
};

;

$(document).ready(function() {

  // Attach onclick event to document only and catch clicks on all elements.
  $(document.body).click(function(event) {
    // Catch only the first parent link of a clicked element.
    $(event.target).parents("a:first,area:first").andSelf().filter("a,area").each(function() {

      var ga = Drupal.settings.googleanalytics;
      // Expression to check for absolute internal links.
      var isInternal = new RegExp("^(https?):\/\/" + window.location.host, "i");
      // Expression to check for special links like gotwo.module /go/* links.
      var isInternalSpecial = new RegExp("(\/go\/.*)$", "i");
      // Expression to check for download links.
      var isDownload = new RegExp("\\.(" + ga.trackDownloadExtensions + ")$", "i");

      // Is the clicked URL internal?
      if (isInternal.test(this.href)) {
        // Is download tracking activated and the file extension configured for download tracking?
        if (ga.trackDownload && isDownload.test(this.href)) {
          // Download link clicked.
          var extension = isDownload.exec(this.href);
          _gaq.push(["_trackEvent", "Downloads", extension[1].toUpperCase(), this.href.replace(isInternal, '')]);
        }
        else if (isInternalSpecial.test(this.href)) {
          // Keep the internal URL for Google Analytics website overlay intact.
          _gaq.push(["_trackPageview", this.href.replace(isInternal, '')]);
        }
      }
      else {
        if (ga.trackMailto && $(this).is("a[href^=mailto:],area[href^=mailto:]")) {
          // Mailto link clicked.
          _gaq.push(["_trackEvent", "Mails", "Click", this.href.substring(7)]);
        }
        else if (ga.trackOutgoing && this.href) {
          if (ga.trackOutboundAsPageview) {
            // Track all external links as page views after URL cleanup.
            // Currently required, if click should be tracked as goal.
            _gaq.push(["_trackPageview", '/outbound/' + this.href.replace(/^(https?|ftp|news|nntp|telnet|irc|ssh|sftp|webcal):\/\//i, '').split('/').join('--')]);
          }
          else {
            // External link clicked.
            _gaq.push(["_trackEvent", "Outbound links", "Click", this.href]);
          }
        }
      }
    });
  });
});
;
// $Id: jquerymenu.js,v 1.7 2010/05/05 07:50:55 aaronhawkins Exp $
Drupal.behaviors.jquerymenu = function(context) {
  jqm_showit = function() {
    $(this).children('.jqm_link_edit').fadeIn();
  }
  jqm_hideit = function() {
    $(this).children('.jqm_link_edit').fadeOut();
  }
  $('ul.jquerymenu li').hover(jqm_showit, jqm_hideit);

  $('ul.jquerymenu:not(.jquerymenu-processed)', context).addClass('jquerymenu-processed').each(function(){
    $(this).find("li.parent span.parent").click(function(){
      momma = $(this).parent();
      if ($(momma).hasClass('closed')){
        $($(this).siblings('ul').children()).hide().fadeIn('3000');
        $(momma).children('ul').slideDown('700');
        $(momma).removeClass('closed').addClass('open');
        $(this).removeClass('closed').addClass('open');
      }
      else{
        $(momma).children('ul').slideUp('700');
        $($(this).siblings('ul').children()).fadeOut('3000');
        $(momma).removeClass('open').addClass('closed');
        $(this).removeClass('open').addClass('closed');
      }
    });
  });
};
// $Id$
/**
 *
 */

//From http://www.somacon.com/p355.php
function trim(stringToTrim) {
  return stringToTrim.replace(/^\s+|\s+$/g,"");
}
function ltrim(stringToTrim) {
  return stringToTrim.replace(/^\s+/,"");
}
function rtrim(stringToTrim) {
  return stringToTrim.replace(/\s+$/,"");
}

var LearningExercise = LearningExercise || {};
LearningExercise.noSolutionIndicator = "(No solution stored)";
LearningExercise.noSolutionIndicatorHtml = "<p>(No solution stored)</p>";
LearningExercise.solutionKeypressTimer = new Array(); //One for each instance.
LearningExercise.solutionSaveTime = 3000; //Save frequency. 
LearningExercise.modulePath; //Path to the module.
LearningExercise.lastRawSolution = new Array(); //One for each instance.
  //What the user actually typed into the field.
//LearningExercise.lastFilteredSolution = new Array(); //One for each instance.
  //How what the user typed will be rendered.

LearningExercise.checkSolChangesTime = 1800;
  //Check for changes in text - so can detect paste changes.

//Globals for new remark processing.
LearningExercise.remark_keypress_timer = new Array(); //One for each instance.
LearningExercise.remark_save_time = 3000; //Save frequency.
LearningExercise.last_raw_remark = new Array(); //One for each instance.
  //What the user actually typed into the field.
LearningExercise.last_filtered_remark = new Array(); //One for each instance.
  //How what the user typed will be rendered.

//Whether the yes/no buttons should work.
LearningExercise.request_review_disabled = new Array();
LearningExercise.public_disabled = new Array();

//Whether in edit mode for solution.
LearningExercise.editing_solution = new Array();

//Whether there are unsaved changes for each exercise instance.
LearningExercise.isUnsavedChanges = new Array();

/**
 * Save a solution.
 * @param instanceNumber Instance of solution text area on the page.
 * @param callback Do this after saving.
 */
LearningExercise.saveSolution = function(instanceNumber, callback){
  clearTimeout(LearningExercise.solutionKeypressTimer[instanceNumber]);
  //Show the throbber.
  $('#learningexercise_solution_throbber_' + instanceNumber).css('display', 'inline');
  //Store this as the most recent raw solution.
  LearningExercise.lastRawSolution[instanceNumber] 
      = $('#user_solution_textarea_' + instanceNumber).val();

  //For detecting changes.
  $('#user_solution_textarea_' + instanceNumber).data('currentValue',
    $('#user_solution_textarea_' + instanceNumber).val());

  var siteRoot = $('#site_root_' + instanceNumber).val();
  var exerciseNID = $('#user_solution_nid_' + instanceNumber).val();
  var UID = $('#user_solution_uid_' + instanceNumber).val();
  $.ajax({
    type: 'POST',
    url: siteRoot + 'learningexercise/save-solution-js',
    dataType: 'json',
    data: 
      'solution=' + LearningExercise.lastRawSolution[instanceNumber]
        + '&exercise_nid=' + exerciseNID
        + '&uid=' + UID
        + '&instance_number=' + instanceNumber,
    success: callback
  });
}

/**
 * Called when saved a solution, but user not done yet.
 */
LearningExercise.solutionSaved = function(result) {
  var instanceNumber = result.instance_number;
  //Hide the throbber.
  $('#learningexercise_solution_throbber_' + instanceNumber).css('display', 'none');
  if (result) {
    if (!result.status) {
      alert(result.message);
    }
    //Get the filtered value (returned from Drupal) and store it.
//    LearningExercise.lastFilteredSolution[instanceNumber] = trim(result.solution);
    //Disable save button.
    $("#user_solution_save_button_" + instanceNumber).attr('disabled', true);
    //Focus back to textarea.
    $('#user_solution_textarea_' + instanceNumber).focus();
    //Show no unsaved changes.
    LearningExercise.isUnsavedChanges[instanceNumber] = false;
  }
}

/**
 * Clear up the UI after done editing.
 * @param result Either a result from AJAX call, or just an instance number.
 */
LearningExercise.finalizeDoneEditing = function(result) {
  //Get the instance number.
  var instanceNumber = (result.instance_number) ? result.instance_number : result;
  //Hide the throbber.
  $('#learningexercise_solution_throbber_' + instanceNumber).css('display', 'none');
  if (result.instance_number) {
    //Called from AJAX.
    if (!result.status) {
      alert(result.message);
      return;
    }
//    else {
//      //Get the filtered value (returned from Drupal) and store it.
//      LearningExercise.lastFilteredSolution[instanceNumber] = trim(result.solution);
//    }
  }
  //Record the change.
  LearningExercise.editing_solution[instanceNumber] = false;
  //Disable save button.
  $("#user_solution_save_button_" + instanceNumber).attr('disabled', true);
  //Show the static text (and the edit button).
  var textToShow = 
      (LearningExercise.lastRawSolution[instanceNumber] == '') ?
        LearningExercise.noSolutionIndicator : 
        LearningExercise.lastRawSolution[instanceNumber];
//  var textToShow =
//      (LearningExercise.lastFilteredSolution[instanceNumber] == '') ?
//        LearningExercise.noSolutionIndicator :
//        LearningExercise.lastFilteredSolution[instanceNumber];

  $('#user_solution_' + instanceNumber)
      .html(codeHtmlEntities(textToShow));
  //Hide the form.
  $('#user_solution_form_' + instanceNumber).hide();
  $('#show_solution_container_' + instanceNumber).show();
//  $('#user_solution_form_' + instanceNumber).hide('fast',
//      function() {
//        $('#show_solution_container_' + instanceNumber).show('fast');
//      }
//  );
}

//Encode text, inserting HTML entities.
function codeHtmlEntities(t) {
var textneu = t.replace(/&/gi,"&amp;");
textneu = textneu.replace(/</gi,"&lt;");
textneu = textneu.replace(/>/gi,"&gt;");
textneu = textneu.replace(/\r\n/gi,"<br>");
textneu = textneu.replace(/\n/gi,"<br>");
textneu = textneu.replace(/\r/gi,"<br>");
return(textneu);
}
      
Drupal.behaviors.createSolutionDisplay = function () {
  LearningExercise.modulePath = Drupal.settings.learningexercise_module_path;
  //Create solution forms.
  $('.learningexercise_solution_form_marker').each(function() {
    var formId = $(this).attr('id');
    //Each user sol form on page has a unique instance number.
    var instanceNumber = formId.split('_').pop();
    //Create code to create the solution display.
    var codeToAdd =
' <div id="show_solution_container_' + instanceNumber + '" class="le_show_solution_container">' +
'  <p class="le_solution" id="user_solution_' + instanceNumber + '"></p>' +
'  <p class="le_edit_button_container">'+
'    <button type="button" id="edit_solution_button_' + instanceNumber + '" ' +
'        title="Change your solution">Edit</button>' +
'  </p>' +
' </div>' // +
    //Add the code before the solution form.
    $(this).before($(codeToAdd));
    //Add in the current solution.
    var currentFilteredSolution = $('#filtered_solution_' + instanceNumber).val();
//    LearningExercise.lastFilteredSolution[instanceNumber] = currentFilteredSolution;
    //Not in editing mode to start with.
    LearningExercise.editing_solution[instanceNumber] = false;
    $('#user_solution_' + instanceNumber).html(currentFilteredSolution);
    //Show solution has not changed.
    LearningExercise.isUnsavedChanges[instanceNumber] = false;
    //Add a click handler to show the solution editing form.
    var solutionForm = $(this); //So have something to ref inside next anon fn.
    $('#edit_solution_button_' + instanceNumber).bind("click", function() {
      LearningExercise.editing_solution[instanceNumber] = true;
      if ( $('#user_solution_textarea_' + instanceNumber).val()
            == LearningExercise.noSolutionIndicator ) {
        $('#user_solution_textarea_' + instanceNumber).val('');
      }
      $('#show_solution_container_' + instanceNumber).hide();
      LearningExercise.lastRawSolution[instanceNumber]
          = $('#user_solution_textarea_' + instanceNumber).val();
      solutionForm.show();
// Bug somewhere - adding animation like below breaks it.
//      $('#show_solution_container_' + instanceNumber).hide(
//          'fast', function() {
//        solutionForm.show('fast', function() {
//          $('#user_solution_textarea_' + instanceNumber).focus();
//        });
//      });
    });
    //For detecting changes.
    $('#user_solution_textarea_' + instanceNumber).data('currentValue',
        $('#user_solution_textarea_' + instanceNumber).val());
    //Add key handler to start timer
    $('#user_solution_textarea_' + instanceNumber).keyup(function(){
      LearningExercise.leSolutionChanged(instanceNumber);
    });
    //Set timer to check for changes caused by pastes with mouse.
    window.setInterval(
      LearningExercise.checkForTextChanges, LearningExercise.checkSolChangesTime, instanceNumber);
    //Hide the editing form.
    $(this).css('display', 'none');
    //Create save and done buttons to put after the form.
    var saveDoneCode = $(
'<div id="user_solution_save_done_button_container_' + instanceNumber + '">\
<button \
  id="user_solution_save_button_' + instanceNumber + '"\
  type="button" \
  title="Save your solution">Save</button>\
&nbsp;&nbsp;\
<button \
  id="user_solution_done_button_' + instanceNumber + '"\
  type="button" \
  title="Finished changing solution">Done</button>\
&nbsp;<img class="learningexercise-throbber" \
    id="learningexercise_solution_throbber_' + instanceNumber + '" \
    src="' + LearningExercise.modulePath + '/images/throbber_krm.gif" alt="Saving..." />\
</div>'
    );
    $(this).append(saveDoneCode);
    $('#learningexercise_solution_throbber_' + instanceNumber).css('display', 'none');
    //Flags container - for complete, public, request review.
    flags_container = $('<div id="le_flags_container' + instanceNumber + '" class="le_flags_container"/>');
    $(this).after(flags_container);
    //Show the public widget? Could be globally disabled.
    if ($('#public_' + instanceNumber).length > 0) {
      LearningExercise.insert_yes_no_button({
        id: 'public_widget_' + instanceNumber,
        label: 'Make<br/>public?',
        value: $('#public_' + instanceNumber).val()==1 ? 1 : 0,
        help_text:
'Do you want everyone to be able to see your solution?' +
'<br/><br/>' +
'For more information, see <a href="your-exercises/">your exercises</a> page.',
        append_to: flags_container,
        throbber_id: 'learningexercise_public_throbber_' + instanceNumber,
        throbber_image: LearningExercise.modulePath + '/images/throbber_krm.gif',
        help_image: LearningExercise.modulePath + '/images/help_dog.png',
        disabled_variable: 'LearningExercise.public_disabled[' + instanceNumber + ']',
        eval_on_click: 'LearningExercise.save_public_flag('
          + '[value], ' + instanceNumber + ')'
            //Widget replaces [value] with 1 or 0.
      });
    }
    //Show the review request widget?
    if ($('#request_review_' + instanceNumber).length > 0) {
      LearningExercise.insert_yes_no_button({
        id: 'request_review_widget_' + instanceNumber,
        label: 'Request<br/>review?',
        value: $('#request_review_' + instanceNumber).val()==1 ? 1 : 0,
        help_text:
'Do you want someone to check your solution and give you feedback? ' +
'You must enter the names of the user(s) who you allow to check your ' +
'work. Do this on <a href="your-exercises/settings">your exercise settings</a> page.' +
'<br/><br/>' +
'For more information, see <a href="your-exercises/">your exercises</a> page.'
,
        append_to: flags_container,
        throbber_id: 'learningexercise_request_review_throbber_' + instanceNumber,
        throbber_image: LearningExercise.modulePath + '/images/throbber_krm.gif',
        help_image: LearningExercise.modulePath + '/images/help_dog.png',
        disabled_variable: 'LearningExercise.request_review_disabled[' + instanceNumber + ']',
        eval_on_click: 'LearningExercise.save_request_review_flag('
          + '[value], ' + instanceNumber + ')'
            //Widget replaces [value] with 1 or 0.
      });
    }
    //Should the yes/no buttons be enabled?
    LearningExercise.set_yes_no_enabled_state(instanceNumber);
    //Show the complete image?
    if ( $('#complete_' + instanceNumber).val() == 1 ) {
      var completed_code =
        '<div id="le_complete_' + instanceNumber + '" class="le_complete_text_image"> ' +
        '  <img src="' + LearningExercise.modulePath + '/images/complete_text.png" ' +
        '  alt="Exercise completed!" />' +
        '</div>';
      flags_container.append(completed_code);
    }
    //The review remarks.
    remarks = $('#remarks_' + instanceNumber).val();
    //Only show anything at all if there are remarks.
    if ( remarks.length > 0 ) {
      fb_container = $('<div class="le_remarks_container" id="le_remarks_container_' + instanceNumber + '"/>');
      flags_container.after(fb_container);
      LearningExercise.generate_remarks_code(
            fb_container,     //Container, jQuery object.
            instanceNumber,   //Instance number, one for each exercise.
            remarks);         //Text
    }
    //Disable the save solution button
    $('#user_solution_save_button_' + instanceNumber).attr('disabled', true);
    //Event for the Save solution button.
    $('#user_solution_save_button_' + instanceNumber).click(function() {
      LearningExercise.saveSolution(instanceNumber, LearningExercise.solutionSaved);
    }); //End save solution button.
    //Code for the Done button.
    $('#user_solution_done_button_' + instanceNumber).click(function() {
    //User done editing. Save, close edit control.
      if ( ! $('#user_solution_save_button_' + instanceNumber).attr('disabled') ) {
        LearningExercise.saveSolution(instanceNumber, LearningExercise.finalizeDoneEditing);
      }
      else {
        LearningExercise.finalizeDoneEditing(instanceNumber);
      }
    }); //End done button.
  }); //End each() exercise form.
  //Create the comment forms.
  $('.learningexercise_add_comment_form_marker').each(function() {
    var formId = $(this).attr('id');
    //Each comment form on page has a unique instance number.
    var instanceNumber = formId.split('_').pop();
    //Create code to create the comment display.
    var codeToAdd = $(
'<p>\
<button \
  id="learningexercise_add_comment_save_button_' + instanceNumber + '"\
  type="button" \
  title="Save your comment">Save comment</button>\
<span class="learningexercise-throbber" \
    id="learningexercise_comment_throbber_' + instanceNumber + '" \
    style="display:none"></span>\
</p>'
    );
    $(this).append(codeToAdd);
    //Event for the Save button on the add comment form.
    $('#learningexercise_add_comment_save_button_' + instanceNumber).click(function() {
      var newComment = $('#learningexercise_add_comment_textarea_' + instanceNumber).val();
      //Disable the Save button
      $('#learningexercise_add_comment_save_button_' + instanceNumber).attr('disabled', true);
      //Show the throbber.
      $('#learningexercise_comment_throbber_' + instanceNumber).css('display', 'inline');
      var siteRoot = $('#learningexercise_add_comment_site_root_' + instanceNumber).val();
      var exerciseNID = $('#learningexercise_add_comment_nid_' + instanceNumber).val();
      var UID = $('#learningexercise_add_comment_uid_' + instanceNumber).val();
      $.ajax({
        type: 'POST',
        url: siteRoot + 'learningexercise/save-new-comment-js',
        dataType: 'json',
        data:
          'comment=' + escape(newComment)
            + '&exercise_nid=' + exerciseNID
            + '&uid=' + UID
            + '&instance_number=' + instanceNumber,
        success: LearningExercise.commentSaved
      });
    }); //End save button.

  }); //End each() comment form.
}

LearningExercise.leSolutionChanged = function(instanceNumber) {
  //User typed something in the solutions control.
  //Set flag to show that there has been a change.
  LearningExercise.isUnsavedChanges[instanceNumber] = true;
  //Should the yes/no buttons be enabled?
  LearningExercise.set_yes_no_enabled_state(instanceNumber);
  //Remember the current value, for period checking for pastes.
  $('#user_solution_textarea_' + instanceNumber).data('currentValue',
      $('#user_solution_textarea_' + instanceNumber).val());
  clearTimeout(LearningExercise.solutionKeypressTimer[instanceNumber]);
  LearningExercise.solutionKeypressTimer[instanceNumber]
      = window.setTimeout(
        'LearningExercise.saveSolution(' + instanceNumber + ', LearningExercise.solutionSaved)',
        LearningExercise.solutionSaveTime);
  $('#user_solution_save_button_' + instanceNumber).attr('disabled', false);
}

LearningExercise.checkForTextChanges = function(instanceNumber) {
  //Check for change in sol text. Detect paste this way.
  var cntrl = $('#user_solution_textarea_' + instanceNumber);
  if ( cntrl.data('currentValue') != cntrl.val() ) {
    LearningExercise.leSolutionChanged(instanceNumber);
  }
}

/**
 * Set the enabled/disabled state of the yes/no buttons.
 */
LearningExercise.set_yes_no_enabled_state = function(instance_number){
//alert('set_yes_no_enabled_state LearningExercise.is_empty_solution(' + instance_number + ') '
//  + LearningExercise.is_empty_solution(instance_number));
  if ( LearningExercise.is_empty_solution(instance_number) ) {
    LearningExercise.request_review_disabled[instance_number] = true;
    LearningExercise.public_disabled[instance_number] = true;
    $('#request_review_widget_' + instance_number + '_label')
        .addClass('yes_no_button_label_disabled');
    $('#request_review_widget_' + instance_number + '_button')
        .addClass('yes_no_button_disabled');
    $('#public_widget_' + instance_number + '_label')
        .addClass('yes_no_button_label_disabled');
    $('#public_widget_' + instance_number + '_button')
        .addClass('yes_no_button_disabled');
    $('#request_review_widget_' + instance_number + '_button_img')
        .addClass('yes_no_button_disabled');
    //Set the flags to false. Not sure this is the best thing to do, though.
    //$('#request_review_widget_' + instance_number).data('value', 0);
    $('#request_review_widget_' + instance_number + '_button_img').attr('src', LearningExercise.modulePath + '/images/off.png');
    $('#request_review_widget_' + instance_number + '_button_text').text('No');
    //LearningExercise.save_request_review_flag(0, instance_number);
    //$('#public_widget_' + instance_number).data('value', 0);
    $('#public_widget_' + instance_number + '_button_img').attr('src', LearningExercise.modulePath + '/images/off.png');
    $('#public_widget_' + instance_number + '_button_text').text('No');
    //LearningExercise.save_public_flag(0, instance_number);
  }
  else {
    LearningExercise.request_review_disabled[instance_number] = false;
    LearningExercise.public_disabled[instance_number] = false;
    $('#request_review_widget_' + instance_number + '_label')
        .removeClass('yes_no_button_label_disabled');
    $('#request_review_widget_' + instance_number + '_button')
        .removeClass('yes_no_button_disabled');
    $('#public_widget_' + instance_number + '_label')
        .removeClass('yes_no_button_label_disabled');
    $('#public_widget_' + instance_number + '_button')
        .removeClass('yes_no_button_disabled');
    $('#request_review_widget_' + instance_number + '_button_img')
        .removeClass('yes_no_button_disabled');
    if ( $('#request_review_widget_' + instance_number).data('value') == 1 ) {
      $('#request_review_widget_' + instance_number + '_button_img')
          .attr('src', LearningExercise.modulePath + '/images/on.png');
      $('#request_review_widget_' + instance_number + '_button_text').text('Yes')
    }
    else {
      $('#request_review_widget_' + instance_number + '_button_img')
          .attr('src', LearningExercise.modulePath + '/images/off.png');
      $('#request_review_widget_' + instance_number + '_button_text').text('No');
    }
  }
};

/**
 * Check whether solution is empty. What is checked depends on the editing state.
 * If not editing, then look at display field. If editing, look at
 * <textarea>.
 */
LearningExercise.is_empty_solution = function(instance_number) {
  var solution;
  if ( LearningExercise.editing_solution[instance_number] ) {
    //User is editing - check textarea
    solution = $('#user_solution_textarea_' + instance_number).val();
  }
  else {
    solution = $('#user_solution_' + instance_number).html();
  }
  solution = trim(solution);
  return (
               solution.length == 0
            || solution == LearningExercise.noSolutionIndicatorHtml
            || solution == LearningExercise.noSolutionIndicator
          );
}

/**
 * Create the display for remarks. Customize, depending on whether remarks
 * already exist.
 */
LearningExercise.generate_remarks_code = function(
      fb_container,     //Container, jQuery object.
      instanceNumber,   //Instanc number, one for each exercise.
      remarks         //Text
      ) {
  //Add remark container with add button.
  //Do this even if there are no remarks, so it cen become visible when the
  //user adds a remark.
  code = '<div class="le_remarks_and_button_container" ' +
         '    id="le_remarks_and_button_container_' + instanceNumber + '">' +
         '  <div class="le_remarks" id="le_remarks_' + instanceNumber + '">' +
              remarks +
         '  </div>' +
         '  <div class="le_add_remark_button_container">' +
         '    <button type="button" id="le_add_remark_button_' + instanceNumber + '">' +
         '      Add' +
         '    </button>' +
         '  </div>' +
         '</div>';
  fb_container.append(code);
  if ( remarks.length < 1 ) {
    //For this state, a simple Add remark button.
    code =
        '<p id="le_no_remarks_container_' + instanceNumber + '" ' +
        '    class="le_no_remarks_container">' +
        '  <button type="button" id="le_add_remark_button_no_remarks_' + instanceNumber + '">' +
        '    Add remark' +
        '  </button>' +
        '</p>';
    fb_container.append(code);
    //Hide the display used when there are remarks.
    $('#le_no_remarks_container_' + instanceNumber).hide();
    //Set click to call the real one's handler.
    $('#le_add_remark_button_no_remarks_' + instanceNumber).click(function() {
      LearningExercise.add_remark_button_click(instanceNumber);
    })
  }
  code = '<div id="le_new_remark_container_' + instanceNumber + '" class="le_new_remark_container">' +
         '   <textarea rows="2" id="le_new_remark_' + instanceNumber + '" class="le_new_remark"/><br/>' +
         '   <div class="le_new_remark_buttons_container">' +
         '     <button type="button" id="le_new_remark_save_button_'+ instanceNumber + '" ' +
         '           class="le_new_remark_save_button" title="Save new remark">' +
         '       Save' +
         '     </button>' +
         '     <button type="button" id="le_new_remark_done_button_'+ instanceNumber + '" ' +
         '           class="le_new_remark_done_button" title="Finished new remark">' +
         '       Done' +
         '     </button>&nbsp;&nbsp;' +
         '     <button type="button" id="le_new_remark_cancel_button_'+ instanceNumber + '" ' +
         '           class="le_new_remark_cancel_button" title="Cancel new remark">' +
         '       Cancel' +
         '     </button>' +
         '     &nbsp;<img class="learningexercise-throbber" ' +
         '         id="learningexercise_remarks_throbber_' + instanceNumber + '" ' +
         '         src="' + LearningExercise.modulePath + '/images/throbber_krm.gif" alt="Saving..." />' +
         '    </div>' +
         '</div>';
  fb_container.append(code);
  //User clicks the add remark button.
  $('#le_add_remark_button_' + instanceNumber).click(function() {
    LearningExercise.add_remark_button_click(instanceNumber);
  })
  //Set up click events for save, done and cancel buttons
  $('#le_new_remark_save_button_' + instanceNumber).click(function() {
    LearningExercise.save_remark(instanceNumber, LearningExercise.remark_saved);
  });
  $('#le_new_remark_done_button_' + instanceNumber).click(function() {
    //User done editing. Save, close edit control.
    if ( ! $('#user_new_remark_save_button_' + instanceNumber).attr('disabled') ) {
      LearningExercise.save_remark(instanceNumber, LearningExercise.done_adding_remark);
    }
    else {
      LearningExercise.done_adding_remark(instanceNumber);
    }
  });
  $('#le_new_remark_cancel_button_' + instanceNumber).click(function() {
      LearningExercise.cancel_adding_remark(instanceNumber);
  });
  //Remark textarea keypress event - start Ajax save timer.
  $('#le_new_remark_' + instanceNumber).keypress(function(e){
    //User typed something in the remark control.
    clearTimeout(LearningExercise.remark_keypress_timer[instanceNumber]);
    LearningExercise.remark_keypress_timer[instanceNumber]
        = window.setTimeout(
          'LearningExercise.save_remark(' + instanceNumber + ', LearningExercise.remark_saved)',
          LearningExercise.remark_save_time);
    $('#le_new_remark_save_button_' + instanceNumber).attr('disabled', false);
  });
}

LearningExercise.add_remark_button_click = function(instanceNumber) {
  //Disable the Add button.
  $('#le_add_remark_button_' + instanceNumber).attr('disabled', 'disabled');
  //Clear the text field.
  $('#le_new_remark_' + instanceNumber).val('');
  //Disable save button.
  $('#le_new_remark_save_button_'+ instanceNumber).attr('disabled', 'disabled');
  //Disable done button.
  $('#le_new_remark_done_button_'+ instanceNumber).attr('disabled', 'disabled');
  //Hide the throbber.
  $('#learningexercise_remarks_throbber_' + instanceNumber).hide();
  //Hide the 'no remarks container' - may not be there.
  var container = $('#le_no_remarks_container_' + instanceNumber);
  if ( container.length > 0 ) {
    container.hide();
  }
  //Show the add form.
  $('#le_new_remark_container_' + instanceNumber).show('fast');
}


/*
 * Insert Yes No button widget
 * options:
 * id: 'public',          //id of the entire widget
 * label: 'Public?',      //Label to show user
 * value: 0,              //Initial value
 * help_text: 'This is the help text', //Tool tip text
 * append_to: $('#thing')  //Where to put it in DOM
 * eval_on_click: 'LearningExercise.save_public_flag(7)',
 * throbber_id: 'public_throbber7' //id to give the throbber
 * throbber_image: 'thing/alsdfk.gif' //Image to use for the throbber
 * help_image: 'help_icon.png',
 * eval_on_click: 'LearningExercise.save_public_flag([value], 7)'
 *    String to evaluate when user changes the widget's value.
 *    The widget will replace [value] by the widget's current value.
 */
LearningExercise.insert_yes_no_button = function(options) {
//    LearningExercise.fancytip_image_path = Drupal.settings.fancytip_image_path;
//    jQuery.fn.fancytip.defaults.imagesdir = LearningExercise.fancytip_image_path;
    var main_id = options['id'];
    var button_id = main_id + '_button';
    var button_image_id = button_id + '_img';
    var button_text_id = button_id + '_text';
    var on_image_path = LearningExercise.modulePath + '/images/on.png';
    var off_image_path = LearningExercise.modulePath + '/images/off.png';
    var help_id = options['id'] + '_help';
    var throbber_id = options['throbber_id'];
    var disabled_variable = options['disabled_variable'];

    var label_id = main_id + '_label';
    var throbber_code = '\n    <img src="' + options['throbber_image'] + '" alt="In progress..." id="' + throbber_id + '" class="yes_no_button_throbber">';
    var lbl = '\n    <div class="yes_no_button_label" id="' + label_id + '">' +
          options['label'] + '</div>';
    var button_code =
'    <div id="' + button_id + '" class="yes_no_button">' +
       lbl +
'      <div class="le_yes_no_image_text_container">' +
'        <img id="' + button_image_id + '" class="yes_no_image" /><br/>'+
'        <span class="yes_no_value" id="' + button_text_id + '"/>' +
'      </div>' +
'    </div>';
    //Put them all together.
    var result =
'   <div class="yes_no_button_container" id="' + main_id + '">' +
      button_code +  
'    <div class="le_yes_no_help_throb_container">' +
'      <img src="' + options['help_image'] + '" alt="Help" ' +
          'title="Click for help" id="' + help_id + '" class="yes_no_button_help"><br/>' +
          throbber_code +
'    </div>' +
'   </div>';
    result = $(result);
    options['append_to'].append(result);
    //Make sure value is either 1 or 0.
    options['value'] = options['value'] ? 1 : 0;
    $('#' + main_id).data('value', options['value']);
    //Create a function to show the button in the right state.
    var show_state = function() {
      if ( $('#' + main_id).data('value') == 1 ) {
        $('#' + button_image_id).attr('src', on_image_path);
        $('#' + button_text_id).text('Yes');
      }
      else {
        $('#' + button_image_id).attr('src', off_image_path);
        $('#' + button_text_id).text('No');
      }
    }
    //Initialize the display.
    show_state();
    var offset_parent = $('#main_inner');
    $('#' + help_id).bt(options['help_text'], {
      trigger: 'click',
      fill: '#FFFFCC',
      clickAnywhereToClose: true,
      closeWhenOthersOpen: true,
      shadow:           true,
      shadowColor:      "#BBB",
      strokeStyle:      "#583000",
      positions:        ['right'],
      offsetParent: offset_parent
    });
    //What happens when the button is clicked?
    $('#' + button_id).click(function() {
//alert(disabled_variable + ' ' + eval(disabled_variable))
      if ( eval(disabled_variable) ) {
        return;
      }
      var new_value = $('#' + main_id).data('value') == 0 ? 1 : 0;
      $('#' + main_id).data('value', new_value);
      show_state();
      var eval_string = options['eval_on_click'];
      eval_string = eval_string.replace('[value]', new_value);
      eval(eval_string);
      return false;
    });
  }

LearningExercise.save_public_flag = function(flagValue, instanceNumber){
  if ( LearningExercise.public_disabled[instanceNumber] ) {
    return;
  }
  var siteRoot = $('#site_root_' + instanceNumber).val();
  var exerciseNID = $('#user_solution_nid_' + instanceNumber).val();
  var UID = $('#user_solution_uid_' + instanceNumber).val();
  //Show the public throbber.
  $('#learningexercise_public_throbber_' + instanceNumber).show();
  $.ajax({
    type: 'POST',
    url: siteRoot + 'learningexercise/save-public-flag-js',
    dataType: 'json',
    data: 'exercise_nid=' + exerciseNID +
    '&uid=' +
    UID +
    '&instance_number=' +
    instanceNumber +
    '&flag_value=' +
    flagValue,
    success: LearningExercise.publicFlagSaved
  });
}

LearningExercise.publicFlagSaved = function(result){
  //Handle errors.
  var instanceNumber = result.instance_number;
  //Hide the public throbber.
  $('#learningexercise_public_throbber_' + instanceNumber).hide();
  if (!result.status) {
    alert(result.message);
  }
}

LearningExercise.save_request_review_flag = function(flagValue, instanceNumber){
  if ( ! LearningExercise.is_empty_solution(instanceNumber) ) {
    var siteRoot = $('#site_root_' + instanceNumber).val();
    var exerciseNID = $('#user_solution_nid_' + instanceNumber).val();
    var UID = $('#user_solution_uid_' + instanceNumber).val();
    //Show the throbber.
    $('#learningexercise_request_review_throbber_' + instanceNumber).show();
    $.ajax({
      type: 'POST',
      url: siteRoot + 'learningexercise/save-request-review-flag-js',
      dataType: 'json',
      data: 'exercise_nid=' + exerciseNID +
      '&uid=' +
      UID +
      '&instance_number=' +
      instanceNumber +
      '&flag_value=' +
      flagValue,
      success: LearningExercise.request_review_flag_saved
    });
  }
}

LearningExercise.request_review_flag_saved = function(result){
  //Handle errors.
  var instanceNumber = result.instance_number;
  //Hide the throbber.
  $('#learningexercise_request_review_throbber_' + instanceNumber).hide();
  if (!result.status) {
    alert(result.message);
  }
}

LearningExercise.commentSaved = function(result) {
  //Handle errors.
  if ( ! result.status ) {
    alert(result.message);
    return;
  }
  var instanceNumber = result.instance_number;
  //Append the comment to the display.
  $('#learningexercise_add_comment_form_' + instanceNumber)
    .before('<p><hr>Your comment:</p>' + result.comment);
  //Hide the 'No comments' indicator, if present.
  var noCommentsIndicator = $('learningexercise_no_comments_'.instanceNumber);
  if ( noCommentsIndicator ) {
    noCommentsIndicator.css('display', 'none');
  }
  //Clear the new comment form.
  $('#learningexercise_add_comment_textarea_' + instanceNumber).val('');
  //Hide the comment throbber.
  $('#learningexercise_comment_throbber_' + instanceNumber).css('display', 'none');
  //Enable the Save button
  $('#learningexercise_add_comment_save_button_' + instanceNumber).attr('disabled', false);
  //Set the watcher indicator to the right state.
  //The node is automatically watched on a new comment. Need to reflect this
  //In the indicator to the user.
  //Find the right indicator.
  var exerciseNid = result.exercise_nid;
  $(".watcher_node_toggle_watching_link").each(function() {
	  if ( $(this).attr('href').indexOf("/watcher/toggle/" + exerciseNid) != -1 ) {
		  //Does it show that watching is on for the exercise?
	    if ( ! $(this).hasClass('watcher_node_toggle_watching_link_watched') ) {
	      //Show user that watching is on.
	      var rdata = new Array();
	      rdata["status"] = "enabled";
	      toggleWatch($(this), rdata);
	    }
	  }
  });
};

Drupal.behaviors.checkPageUnload = function(context) {
  if (!Drupal.onBeforeUnload.callbackExists('learningexercise')) {
    Drupal.onBeforeUnload.addCallback('learningexercise', function() {
      var messages = '';
      //Checked for unsaved comments.
      var commentInstanceCount = 1;
      var unsavedCommentCount = 0;
      while ( $('#learningexercise_add_comment_textarea_' + commentInstanceCount).size() != 0 ) {
        if ( $('#learningexercise_add_comment_textarea_' + commentInstanceCount).val() != '' ) {
          unsavedCommentCount++;
        }
        commentInstanceCount ++;
      }
      if ( unsavedCommentCount == 1) {
        messages += "\nYou have an unsaved exercise comment on this page.";
      }
      else if ( unsavedCommentCount > 1) {
        messages += "\nYou have unsaved exercise comments on this page.";
      }
      //Check for unsaved solutions.
      var solutionInstanceCount = 1;
      var unsavedSolutionCount = 0;
      while ( $("#user_solution_save_button_" + solutionInstanceCount).size() != 0 ) {
//        if ($("#user_solution_save_button_" + solutionInstanceCount).is(":visible")) {
//          if (!$("#user_solution_save_button_" + solutionInstanceCount).attr('disabled')) {
        if ( LearningExercise.isUnsavedChanges[solutionInstanceCount] ) {
          unsavedSolutionCount++;
//          }
        }
        solutionInstanceCount ++;
      }
      if ( unsavedSolutionCount == 1) {
        messages += "\nYou have an unsaved solution on this page.";
      }
      else if ( unsavedSolutionCount > 1) {
        messages += "\nYou have unsaved solutions on this page.";
      }
      //Any messages for the user?      
      if ( messages != '' ) {
        return messages;
      }
    });
  }
};


/* ************************ New remark processing ************* */

/**
 * Save a remark.
 * @param instance_number Instance of remark text area on the page.
 * @param callback Do this after saving.
 */
LearningExercise.save_remark = function(instance_number, callback){
  clearTimeout(LearningExercise.remark_keypress_timer[instance_number]);
  //Show the throbber.
  $('#learningexercise_remarks_throbber_' + instance_number).css('display', 'inline');
  //Store this as the most recent raw remark.
  LearningExercise.last_raw_remark[instance_number]
      = $('#le_new_remark_' + instance_number).val();
  var site_root = $('#site_root_' + instance_number).val();
  //Get nid from Drupal hidden form field.
  var exercise_nid = $('#user_solution_nid_' + instance_number).val();
  var uid = $('#user_solution_uid_' + instance_number).val();
  $.ajax({
    type: 'POST',
    url: site_root + 'learningexercise/save-remark-js',
    dataType: 'json',
    data:
      'remark=' + LearningExercise.last_raw_remark[instance_number]
        + '&exercise_nid=' + exercise_nid
        + '&uid=' + uid
        + '&instance_number=' + instance_number,
    success: callback
  });
}

/**
 * Called when saved a remark, but user not done yet.
 */
LearningExercise.remark_saved = function(result) {
  var instance_number = result.instance_number;
  //Hide the throbber.
  $('#learningexercise_remarks_throbber_' + instance_number).css('display', 'none');
  if (result) {
    if (!result.status) {
      alert(result.message);
      return;
    }
    //Get the filtered value (returned from Drupal) and store it.
    LearningExercise.last_filtered_remark[instance_number] = trim(result.remark);
    //Disable save button.
    $("#user_new_remark_save_button_" + instance_number).attr('disabled', true);
    //Focus back to textarea.
    $('#le_new_remark_' + instance_number).focus();
  }
}

/**
 * Clear up the UI after done editing remark.
 * Tell server to clean up the database as well.
 * @param result Either a result from AJAX call, or just an instance number.
 */
LearningExercise.done_adding_remark = function(result) {
  //Get the instance number. This fn called two ways.
  var instance_number = (result.instance_number) ? result.instance_number : result;
  var site_root = $('#site_root_' + instance_number).val();
  //Get nid from Drupal hidden form field.
  var exercise_nid = $('#user_solution_nid_' + instance_number).val();
  var uid = $('#user_solution_uid_' + instance_number).val();
  //Show the throbber.
  $('#learningexercise_remarks_throbber_' + instance_number).show();
  $.ajax({
    type: 'POST',
    url: site_root + 'learningexercise/done-remark-js',
    dataType: 'json',
    data:
        + 'exercise_nid=' + exercise_nid
        + '&uid=' + uid
        + '&instance_number=' + instance_number,
    success: LearningExercise.adding_remark_complete
  });
}

LearningExercise.adding_remark_complete = function(result) {
  //Hide the throbber.
  $('#learningexercise_remarks_throbber_' + instance_number).hide();
  if (!result.status) {
    alert(result.message);
    return;
  }
  var instance_number = result.instance_number;
  var formatted_remarks = result.formatted_remarks;
  //Show the new formatted remarks, including the new one.
  $('#le_remarks_' + instance_number).html(formatted_remarks);
  //Hide the form. Show the remarks id not already visible.
  //Not visible before if this is the first remark.
  if ( $('#le_remarks_and_button_container' + instance_number).attr('display') == 'none' ) {
    $('#le_new_remark_container_' + instance_number).hide('fast',
        function() {
          $('#le_remarks_and_button_container' + instance_number).show('fast');
        }
    );
  }
  else {
    $('#le_new_remark_container_' + instance_number).hide('fast');
  }
}
;
// Copyright 2006 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
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o+" "+T.color)}a.push('<g_vml_:fill type="',m.type_,'"',' method="none" focus="100%"',' color="',da,'"',' color2="',ea,'"',' colors="',S.join(","),'"',' opacity="',ga,'"',' g_o_:opacity2="',fa,'"',' angle="',r,'"',' focusposition="',n.x,",",n.y,'" />')}else a.push('<g_vml_:fill color="',d,'" opacity="',f,'" />');else{var K=this.lineScale_*this.lineWidth;if(K<1)f*=K;a.push("<g_vml_:stroke",' opacity="',f,'"',' joinstyle="',this.lineJoin,'"',' miterlimit="',this.miterLimit,'"',' endcap="',aa(this.lineCap),
'"',' weight="',K,'px"',' color="',d,'" />')}a.push("</g_vml_:shape>");this.element_.insertAdjacentHTML("beforeEnd",a.join(""))};i.fill=function(){this.stroke(true)};i.closePath=function(){this.currentPath_.push({type:"close"})};i.getCoords_=function(b,a){var c=this.m_;return{x:k*(b*c[0][0]+a*c[1][0]+c[2][0])-v,y:k*(b*c[0][1]+a*c[1][1]+c[2][1])-v}};i.save=function(){var b={};O(this,b);this.aStack_.push(b);this.mStack_.push(this.m_);this.m_=y(I(),this.m_)};i.restore=function(){O(this.aStack_.pop(),
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0],[0,0,1]],this.m_),true)};i.transform=function(b,a,c,d,f,h){A(this,y([[b,a,0],[c,d,0],[f,h,1]],this.m_),true)};i.setTransform=function(b,a,c,d,f,h){A(this,[[b,a,0],[c,d,0],[f,h,1]],true)};i.clip=function(){};i.arcTo=function(){};i.createPattern=function(){return new U};function D(b){this.type_=b;this.r1_=this.y1_=this.x1_=this.r0_=this.y0_=this.x0_=0;this.colors_=[]}D.prototype.addColorStop=function(b,a){a=P(a);this.colors_.push({offset:b,color:a.color,alpha:a.alpha})};function U(){}G_vmlCanvasManager=
M;CanvasRenderingContext2D=H;CanvasGradient=D;CanvasPattern=U})();
;
/* Copyright (c) 2006 Brandon Aaron (http://brandonaaron.net)
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) 
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 *
 * $LastChangedDate: 2007-07-21 18:45:56 -0500 (Sat, 21 Jul 2007) $
 * $Rev: 2447 $
 *
 * Version 2.1.1
 */
(function($){$.fn.bgIframe=$.fn.bgiframe=function(s){if($.browser.msie&&/6.0/.test(navigator.userAgent)){s=$.extend({top:'auto',left:'auto',width:'auto',height:'auto',opacity:true,src:'javascript:false;'},s||{});var prop=function(n){return n&&n.constructor==Number?n+'px':n;},html='<iframe class="bgiframe"frameborder="0"tabindex="-1"src="'+s.src+'"'+'style="display:block;position:absolute;z-index:-1;'+(s.opacity!==false?'filter:Alpha(Opacity=\'0\');':'')+'top:'+(s.top=='auto'?'expression(((parseInt(this.parentNode.currentStyle.borderTopWidth)||0)*-1)+\'px\')':prop(s.top))+';'+'left:'+(s.left=='auto'?'expression(((parseInt(this.parentNode.currentStyle.borderLeftWidth)||0)*-1)+\'px\')':prop(s.left))+';'+'width:'+(s.width=='auto'?'expression(this.parentNode.offsetWidth+\'px\')':prop(s.width))+';'+'height:'+(s.height=='auto'?'expression(this.parentNode.offsetHeight+\'px\')':prop(s.height))+';'+'"/>';return this.each(function(){if($('> iframe.bgiframe',this).length==0)this.insertBefore(document.createElement(html),this.firstChild);});}return this;};})(jQuery);;
/*
 * @name BeautyTips
 * @desc a tooltips/baloon-help plugin for jQuery
 *
 * @author Jeff Robbins - Lullabot - http://www.lullabot.com
 * @version 0.9.5-rc1  (5/20/2009)
 */
jQuery.bt={version:"0.9.5-rc1"};(function($){jQuery.fn.bt=function(content,options){if(typeof content!="string"){var contentSelect=true;options=content;content=false;}else{var contentSelect=false;}if(jQuery.fn.hoverIntent&&jQuery.bt.defaults.trigger=="hover"){jQuery.bt.defaults.trigger="hoverIntent";}return this.each(function(index){var opts=jQuery.extend(false,jQuery.bt.defaults,jQuery.bt.options,options);opts.spikeLength=numb(opts.spikeLength);opts.spikeGirth=numb(opts.spikeGirth);opts.overlap=numb(opts.overlap);var ajaxTimeout=false;if(opts.killTitle){$(this).find("[title]").andSelf().each(function(){if(!$(this).attr("bt-xTitle")){$(this).attr("bt-xTitle",$(this).attr("title")).attr("title","");}});}if(typeof opts.trigger=="string"){opts.trigger=[opts.trigger];}if(opts.trigger[0]=="hoverIntent"){var hoverOpts=jQuery.extend(opts.hoverIntentOpts,{over:function(){this.btOn();},out:function(){this.btOff();}});$(this).hoverIntent(hoverOpts);}else{if(opts.trigger[0]=="hover"){$(this).hover(function(){this.btOn();},function(){this.btOff();});}else{if(opts.trigger[0]=="now"){if($(this).hasClass("bt-active")){this.btOff();}else{this.btOn();}}else{if(opts.trigger[0]=="none"){}else{if(opts.trigger.length>1&&opts.trigger[0]!=opts.trigger[1]){$(this).bind(opts.trigger[0],function(){this.btOn();}).bind(opts.trigger[1],function(){this.btOff();});}else{$(this).bind(opts.trigger[0],function(){if($(this).hasClass("bt-active")){this.btOff();}else{this.btOn();}});}}}}}this.btOn=function(){if(typeof $(this).data("bt-box")=="object"){this.btOff();}opts.preBuild.apply(this);$(jQuery.bt.vars.closeWhenOpenStack).btOff();$(this).addClass("bt-active "+opts.activeClass);if(contentSelect&&opts.ajaxPath==null){if(opts.killTitle){$(this).attr("title",$(this).attr("bt-xTitle"));}content=$.isFunction(opts.contentSelector)?opts.contentSelector.apply(this):eval(opts.contentSelector);if(opts.killTitle){$(this).attr("title","");}}if(opts.ajaxPath!=null&&content==false){if(typeof opts.ajaxPath=="object"){var url=eval(opts.ajaxPath[0]);url+=opts.ajaxPath[1]?" "+opts.ajaxPath[1]:"";}else{var url=opts.ajaxPath;}var off=url.indexOf(" ");if(off>=0){var selector=url.slice(off,url.length);url=url.slice(0,off);}var cacheData=opts.ajaxCache?$(document.body).data("btCache-"+url.replace(/\./g,"")):null;if(typeof cacheData=="string"){content=selector?$("<div/>").append(cacheData.replace(/<script(.|\s)*?\/script>/g,"")).find(selector):cacheData;}else{var target=this;var ajaxOpts=jQuery.extend(false,{type:opts.ajaxType,data:opts.ajaxData,cache:opts.ajaxCache,url:url,complete:function(XMLHttpRequest,textStatus){if(textStatus=="success"||textStatus=="notmodified"){if(opts.ajaxCache){$(document.body).data("btCache-"+url.replace(/\./g,""),XMLHttpRequest.responseText);}ajaxTimeout=false;content=selector?$("<div/>").append(XMLHttpRequest.responseText.replace(/<script(.|\s)*?\/script>/g,"")).find(selector):XMLHttpRequest.responseText;}else{if(textStatus=="timeout"){ajaxTimeout=true;}content=opts.ajaxError.replace(/%error/g,XMLHttpRequest.statusText);}if($(target).hasClass("bt-active")){target.btOn();}}},opts.ajaxOpts);jQuery.ajax(ajaxOpts);content=opts.ajaxLoading;}}var shadowMarginX=0;var shadowMarginY=0;var shadowShiftX=0;var shadowShiftY=0;if(opts.shadow&&!shadowSupport()){opts.shadow=false;jQuery.extend(opts,opts.noShadowOpts);}if(opts.shadow){if(opts.shadowBlur>Math.abs(opts.shadowOffsetX)){shadowMarginX=opts.shadowBlur*2;}else{shadowMarginX=opts.shadowBlur+Math.abs(opts.shadowOffsetX);}shadowShiftX=(opts.shadowBlur-opts.shadowOffsetX)>0?opts.shadowBlur-opts.shadowOffsetX:0;if(opts.shadowBlur>Math.abs(opts.shadowOffsetY)){shadowMarginY=opts.shadowBlur*2;}else{shadowMarginY=opts.shadowBlur+Math.abs(opts.shadowOffsetY);}shadowShiftY=(opts.shadowBlur-opts.shadowOffsetY)>0?opts.shadowBlur-opts.shadowOffsetY:0;}if(opts.offsetParent){var offsetParent=$(opts.offsetParent);var offsetParentPos=offsetParent.offset();var pos=$(this).offset();var top=numb(pos.top)-numb(offsetParentPos.top)+numb($(this).css("margin-top"))-shadowShiftY;var left=numb(pos.left)-numb(offsetParentPos.left)+numb($(this).css("margin-left"))-shadowShiftX;}else{var offsetParent=($(this).css("position")=="absolute")?$(this).parents().eq(0).offsetParent():$(this).offsetParent();var pos=$(this).btPosition();var top=numb(pos.top)+numb($(this).css("margin-top"))-shadowShiftY;var left=numb(pos.left)+numb($(this).css("margin-left"))-shadowShiftX;}var width=$(this).btOuterWidth();var height=$(this).outerHeight();if(typeof content=="object"){var original=content;var clone=$(original).clone(true).show();var origClones=$(original).data("bt-clones")||[];origClones.push(clone);$(original).data("bt-clones",origClones);$(clone).data("bt-orig",original);$(this).data("bt-content-orig",{original:original,clone:clone});content=clone;}if(typeof content=="null"||content==""){return;}var $text=$('<div class="bt-content"></div>').append(content).css({padding:opts.padding,position:"absolute",width:(opts.shrinkToFit?"auto":opts.width),zIndex:opts.textzIndex,left:shadowShiftX,top:shadowShiftY}).css(opts.cssStyles);var $box=$('<div class="bt-wrapper"></div>').append($text).addClass(opts.cssClass).css({position:"absolute",width:opts.width,zIndex:opts.wrapperzIndex,visibility:"hidden"}).appendTo(offsetParent);if(jQuery.fn.bgiframe){$text.bgiframe();$box.bgiframe();}$(this).data("bt-box",$box);var scrollTop=numb($(document).scrollTop());var scrollLeft=numb($(document).scrollLeft());var docWidth=numb($(window).width());var docHeight=numb($(window).height());var winRight=scrollLeft+docWidth;var winBottom=scrollTop+docHeight;var space=new Object();var thisOffset=$(this).offset();space.top=thisOffset.top-scrollTop;space.bottom=docHeight-((thisOffset+height)-scrollTop);space.left=thisOffset.left-scrollLeft;space.right=docWidth-((thisOffset.left+width)-scrollLeft);var textOutHeight=numb($text.outerHeight());var textOutWidth=numb($text.btOuterWidth());if(opts.positions.constructor==String){opts.positions=opts.positions.replace(/ /,"").split(",");}if(opts.positions[0]=="most"){var position="top";for(var pig in space){position=space[pig]>space[position]?pig:position;}}else{for(var x in opts.positions){var position=opts.positions[x];if((position=="left"||position=="right")&&space[position]>textOutWidth+opts.spikeLength){break;}else{if((position=="top"||position=="bottom")&&space[position]>textOutHeight+opts.spikeLength){break;}}}}var horiz=left+((width-textOutWidth)*0.5);var vert=top+((height-textOutHeight)*0.5);var points=new Array();var textTop,textLeft,textRight,textBottom,textTopSpace,textBottomSpace,textLeftSpace,textRightSpace,crossPoint,textCenter,spikePoint;switch(position){case"top":$text.css("margin-bottom",opts.spikeLength+"px");$box.css({top:(top-$text.outerHeight(true))+opts.overlap,left:horiz});textRightSpace=(winRight-opts.windowMargin)-($text.offset().left+$text.btOuterWidth(true));var xShift=shadowShiftX;if(textRightSpace<0){$box.css("left",(numb($box.css("left"))+textRightSpace)+"px");xShift-=textRightSpace;}textLeftSpace=($text.offset().left+numb($text.css("margin-left")))-(scrollLeft+opts.windowMargin);if(textLeftSpace<0){$box.css("left",(numb($box.css("left"))-textLeftSpace)+"px");xShift+=textLeftSpace;}textTop=$text.btPosition().top+numb($text.css("margin-top"));textLeft=$text.btPosition().left+numb($text.css("margin-left"));textRight=textLeft+$text.btOuterWidth();textBottom=textTop+$text.outerHeight();textCenter={x:textLeft+($text.btOuterWidth()*opts.centerPointX),y:textTop+($text.outerHeight()*opts.centerPointY)};points[points.length]=spikePoint={y:textBottom+opts.spikeLength,x:((textRight-textLeft)*0.5)+xShift,type:"spike"};crossPoint=findIntersectX(spikePoint.x,spikePoint.y,textCenter.x,textCenter.y,textBottom);crossPoint.x=crossPoint.x<textLeft+opts.spikeGirth/2+opts.cornerRadius?textLeft+opts.spikeGirth/2+opts.cornerRadius:crossPoint.x;crossPoint.x=crossPoint.x>(textRight-opts.spikeGirth/2)-opts.cornerRadius?(textRight-opts.spikeGirth/2)-opts.CornerRadius:crossPoint.x;points[points.length]={x:crossPoint.x-(opts.spikeGirth/2),y:textBottom,type:"join"};points[points.length]={x:textLeft,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textBottom,type:"corner"};points[points.length]={x:crossPoint.x+(opts.spikeGirth/2),y:textBottom,type:"join"};points[points.length]=spikePoint;break;case"left":$text.css("margin-right",opts.spikeLength+"px");$box.css({top:vert+"px",left:((left-$text.btOuterWidth(true))+opts.overlap)+"px"});textBottomSpace=(winBottom-opts.windowMargin)-($text.offset().top+$text.outerHeight(true));var yShift=shadowShiftY;if(textBottomSpace<0){$box.css("top",(numb($box.css("top"))+textBottomSpace)+"px");yShift-=textBottomSpace;}textTopSpace=($text.offset().top+numb($text.css("margin-top")))-(scrollTop+opts.windowMargin);if(textTopSpace<0){$box.css("top",(numb($box.css("top"))-textTopSpace)+"px");yShift+=textTopSpace;}textTop=$text.btPosition().top+numb($text.css("margin-top"));textLeft=$text.btPosition().left+numb($text.css("margin-left"));textRight=textLeft+$text.btOuterWidth();textBottom=textTop+$text.outerHeight();textCenter={x:textLeft+($text.btOuterWidth()*opts.centerPointX),y:textTop+($text.outerHeight()*opts.centerPointY)};points[points.length]=spikePoint={x:textRight+opts.spikeLength,y:((textBottom-textTop)*0.5)+yShift,type:"spike"};crossPoint=findIntersectY(spikePoint.x,spikePoint.y,textCenter.x,textCenter.y,textRight);crossPoint.y=crossPoint.y<textTop+opts.spikeGirth/2+opts.cornerRadius?textTop+opts.spikeGirth/2+opts.cornerRadius:crossPoint.y;crossPoint.y=crossPoint.y>(textBottom-opts.spikeGirth/2)-opts.cornerRadius?(textBottom-opts.spikeGirth/2)-opts.cornerRadius:crossPoint.y;points[points.length]={x:textRight,y:crossPoint.y+opts.spikeGirth/2,type:"join"};points[points.length]={x:textRight,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textTop,type:"corner"};points[points.length]={x:textRight,y:crossPoint.y-opts.spikeGirth/2,type:"join"};points[points.length]=spikePoint;break;case"bottom":$text.css("margin-top",opts.spikeLength+"px");$box.css({top:(top+height)-opts.overlap,left:horiz});textRightSpace=(winRight-opts.windowMargin)-($text.offset().left+$text.btOuterWidth(true));var xShift=shadowShiftX;if(textRightSpace<0){$box.css("left",(numb($box.css("left"))+textRightSpace)+"px");xShift-=textRightSpace;}textLeftSpace=($text.offset().left+numb($text.css("margin-left")))-(scrollLeft+opts.windowMargin);if(textLeftSpace<0){$box.css("left",(numb($box.css("left"))-textLeftSpace)+"px");xShift+=textLeftSpace;}textTop=$text.btPosition().top+numb($text.css("margin-top"));textLeft=$text.btPosition().left+numb($text.css("margin-left"));textRight=textLeft+$text.btOuterWidth();textBottom=textTop+$text.outerHeight();textCenter={x:textLeft+($text.btOuterWidth()*opts.centerPointX),y:textTop+($text.outerHeight()*opts.centerPointY)};points[points.length]=spikePoint={x:((textRight-textLeft)*0.5)+xShift,y:shadowShiftY,type:"spike"};crossPoint=findIntersectX(spikePoint.x,spikePoint.y,textCenter.x,textCenter.y,textTop);crossPoint.x=crossPoint.x<textLeft+opts.spikeGirth/2+opts.cornerRadius?textLeft+opts.spikeGirth/2+opts.cornerRadius:crossPoint.x;crossPoint.x=crossPoint.x>(textRight-opts.spikeGirth/2)-opts.cornerRadius?(textRight-opts.spikeGirth/2)-opts.cornerRadius:crossPoint.x;points[points.length]={x:crossPoint.x+opts.spikeGirth/2,y:textTop,type:"join"};points[points.length]={x:textRight,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textTop,type:"corner"};points[points.length]={x:crossPoint.x-(opts.spikeGirth/2),y:textTop,type:"join"};points[points.length]=spikePoint;break;case"right":$text.css("margin-left",(opts.spikeLength+"px"));$box.css({top:vert+"px",left:((left+width)-opts.overlap)+"px"});textBottomSpace=(winBottom-opts.windowMargin)-($text.offset().top+$text.outerHeight(true));var yShift=shadowShiftY;if(textBottomSpace<0){$box.css("top",(numb($box.css("top"))+textBottomSpace)+"px");yShift-=textBottomSpace;}textTopSpace=($text.offset().top+numb($text.css("margin-top")))-(scrollTop+opts.windowMargin);if(textTopSpace<0){$box.css("top",(numb($box.css("top"))-textTopSpace)+"px");yShift+=textTopSpace;}textTop=$text.btPosition().top+numb($text.css("margin-top"));textLeft=$text.btPosition().left+numb($text.css("margin-left"));textRight=textLeft+$text.btOuterWidth();textBottom=textTop+$text.outerHeight();textCenter={x:textLeft+($text.btOuterWidth()*opts.centerPointX),y:textTop+($text.outerHeight()*opts.centerPointY)};points[points.length]=spikePoint={x:shadowShiftX,y:((textBottom-textTop)*0.5)+yShift,type:"spike"};crossPoint=findIntersectY(spikePoint.x,spikePoint.y,textCenter.x,textCenter.y,textLeft);crossPoint.y=crossPoint.y<textTop+opts.spikeGirth/2+opts.cornerRadius?textTop+opts.spikeGirth/2+opts.cornerRadius:crossPoint.y;crossPoint.y=crossPoint.y>(textBottom-opts.spikeGirth/2)-opts.cornerRadius?(textBottom-opts.spikeGirth/2)-opts.cornerRadius:crossPoint.y;points[points.length]={x:textLeft,y:crossPoint.y-opts.spikeGirth/2,type:"join"};points[points.length]={x:textLeft,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textTop,type:"corner"};points[points.length]={x:textRight,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:textBottom,type:"corner"};points[points.length]={x:textLeft,y:crossPoint.y+opts.spikeGirth/2,type:"join"};points[points.length]=spikePoint;break;}var canvas=document.createElement("canvas");$(canvas).attr("width",(numb($text.btOuterWidth(true))+opts.strokeWidth*2+shadowMarginX)).attr("height",(numb($text.outerHeight(true))+opts.strokeWidth*2+shadowMarginY)).appendTo($box).css({position:"absolute",zIndex:opts.boxzIndex});if(typeof G_vmlCanvasManager!="undefined"){canvas=G_vmlCanvasManager.initElement(canvas);}if(opts.cornerRadius>0){var newPoints=new Array();var newPoint;for(var i=0;i<points.length;i++){if(points[i].type=="corner"){newPoint=betweenPoint(points[i],points[(i-1)%points.length],opts.cornerRadius);newPoint.type="arcStart";newPoints[newPoints.length]=newPoint;newPoints[newPoints.length]=points[i];newPoint=betweenPoint(points[i],points[(i+1)%points.length],opts.cornerRadius);newPoint.type="arcEnd";newPoints[newPoints.length]=newPoint;}else{newPoints[newPoints.length]=points[i];}}points=newPoints;}var ctx=canvas.getContext("2d");if(opts.shadow&&opts.shadowOverlap!==true){var shadowOverlap=numb(opts.shadowOverlap);switch(position){case"top":if(opts.shadowOffsetX+opts.shadowBlur-shadowOverlap>0){$box.css("top",(numb($box.css("top"))-(opts.shadowOffsetX+opts.shadowBlur-shadowOverlap)));}break;case"right":if(shadowShiftX-shadowOverlap>0){$box.css("left",(numb($box.css("left"))+shadowShiftX-shadowOverlap));}break;case"bottom":if(shadowShiftY-shadowOverlap>0){$box.css("top",(numb($box.css("top"))+shadowShiftY-shadowOverlap));}break;case"left":if(opts.shadowOffsetY+opts.shadowBlur-shadowOverlap>0){$box.css("left",(numb($box.css("left"))-(opts.shadowOffsetY+opts.shadowBlur-shadowOverlap)));}break;}}drawIt.apply(ctx,[points],opts.strokeWidth);ctx.fillStyle=opts.fill;if(opts.shadow){ctx.shadowOffsetX=opts.shadowOffsetX;ctx.shadowOffsetY=opts.shadowOffsetY;ctx.shadowBlur=opts.shadowBlur;ctx.shadowColor=opts.shadowColor;}ctx.closePath();ctx.fill();if(opts.strokeWidth>0){ctx.shadowColor="rgba(0, 0, 0, 0)";ctx.lineWidth=opts.strokeWidth;ctx.strokeStyle=opts.strokeStyle;ctx.beginPath();drawIt.apply(ctx,[points],opts.strokeWidth);ctx.closePath();ctx.stroke();}opts.preShow.apply(this,[$box[0]]);$box.css({display:"none",visibility:"visible"});opts.showTip.apply(this,[$box[0]]);if(opts.overlay){var overlay=$('<div class="bt-overlay"></div>').css({position:"absolute",backgroundColor:"blue",top:top,left:left,width:width,height:height,opacity:".2"}).appendTo(offsetParent);$(this).data("overlay",overlay);}if((opts.ajaxPath!=null&&opts.ajaxCache==false)||ajaxTimeout){content=false;}if(opts.clickAnywhereToClose){jQuery.bt.vars.clickAnywhereStack.push(this);$(document).click(jQuery.bt.docClick);}if(opts.closeWhenOthersOpen){jQuery.bt.vars.closeWhenOpenStack.push(this);}opts.postShow.apply(this,[$box[0]]);};this.btOff=function(){var box=$(this).data("bt-box");opts.preHide.apply(this,[box]);var i=this;i.btCleanup=function(){var box=$(i).data("bt-box");var 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// $Id: onbeforeunload.js,v 1.1.2.6 2009/03/30 19:57:22 markuspetrux Exp $

/**
 * @file
 * Provides an API to allow other modules use the onBeforeUnload event
 * of the browser window.
 *
 * Public methods of the Drupal.onBeforeUnload object:
 *
 * - addCallback(module, callback)
 *   Add an onBeforeUnload callback.
 *
 * - removeCallback(module)
 *   Remove an onBeforeUnload callback.
 *
 * - callbackExists(module)
 *   Check if a callback for a particular module exists.
 *
 * - enable()
 *   Enable the onBeforeUnload event handler.
 *
 * - disable()
 *   Disable the onBeforeUnload event handler.
 *
 * Note that any previously installed onBeforeUnload handler will still be
 * invoked by our window event handler. We should do this to prevent from
 * breaking the implementation of the one who installed its own before us.
 */

/**
 * Drupal behavior for onBeforeUnload API.
 */
Drupal.behaviors.onBeforeUnload = function(context) {
  var self = Drupal.onBeforeUnload;

  // Bind our window handler if not already bound.
  if (!self.processed) {
    // Ensure we do not repeat this process more than once.
    self.processed = true;

    // Save a reference to the previous onBeforeUnload handler.
    if (typeof window.onbeforeunload == 'function') {
      self._previousWindowHandler = window.onbeforeunload;
    }

    // Now, bind our window handler for the onBeforeUnload event.
    window.onbeforeunload = self._windowHandler;

    // Finally, enable our event handler.
    self.enable();
  }
};

/**
 * Global onBeforeUnload object.
 */
Drupal.onBeforeUnload = Drupal.onBeforeUnload || {
  processed: false,
  _previousWindowHandler: null,
  _enabled: false,
  _callbacks: {}
};

/**
 * Global window handler for the onBeforeUnload event.
 */
Drupal.onBeforeUnload._windowHandler = function(event) {
  var module, callback, result, results = [];
  var self = Drupal.onBeforeUnload;

  // Invoke any previous onBeforeUnload handler and save its result.
  if (typeof self._previousWindowHandler == 'function') {
    result = self._previousWindowHandler(event);
    if (typeof result == 'string') {
      results.push(result);
    }
  }

  // If enabled, invoke all our installed onBeforeUnload callbacks.
  if (self._enabled) {
    for (module in self._callbacks) {
      result = (self._callbacks[module])();
      if (typeof result == 'string') {
        results.push(result);
      }
    }
  }

  // If we got any results, then we'll return them concatenated.
  // This will fire up a confirmation alert to the user that's
  // implemented by the browser itself (it cannot be themed).
  if (results.length > 0) {
    return results.join('\n');
  }
};

/**
 * Add an onBeforeUnload callback.
 *
 * Note that it is only possible to add one callback per module.
 * It is up to the module implementing the callback itself to
 * perform any additional tasks it may need.
 *
 * @param module
 *   The name of the module that adds the onBeforeUnload callback.
 * @param callback
 *   A function that will be called without arguments by our
 *   global onBeforeUnload handler.
 * @return
 *   TRUE if the callback was successfully added, FALSE otherwise.
 */
Drupal.onBeforeUnload.addCallback = function(module, callback) {
  if (typeof module == 'string' && typeof callback == 'function') {
    this._callbacks[module] = callback;
    return true;
  }
  return false;
};

/**
 * Remove an onBeforeUnload callback.
 *
 * @param module
 *   The name of the module.
 * @return
 *   TRUE if the callback was successfully removed, FALSE otherwise.
 */
Drupal.onBeforeUnload.removeCallback = function(module) {
  if (typeof this._callbacks[module] == 'function') {
    delete this._callbacks[module];
    return true;
  }
  return false;
};

/**
 * Check if a callback for a particular module exists.
 *
 * @param module
 *   The name of the module.
 * @return
 *   TRUE if the callback exists, FALSE otherwise.
 */
Drupal.onBeforeUnload.callbackExists = function(module) {
  return (typeof this._callbacks[module] == 'function');
};

/**
 * Disable the onBeforeUnload event handler.
 */
Drupal.onBeforeUnload.disable = function() {
  this._enabled = false;
};

/**
 * Enable the onBeforeUnload event handler.
 */
Drupal.onBeforeUnload.enable = function() {
  this._enabled = true;
};
;
/**
 * SyntaxHighlighter
 * http://alexgorbatchev.com/
 *
 * SyntaxHighlighter is donationware. If you are using it, please donate.
 * http://alexgorbatchev.com/wiki/SyntaxHighlighter:Donate
 *
 * @version
 * 2.0.320 (May 03 2009)
 * 
 * @copyright
 * Copyright (C) 2004-2009 Alex Gorbatchev.
 *
 * @license
 * This file is part of SyntaxHighlighter.
 * 
 * SyntaxHighlighter is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * SyntaxHighlighter is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with SyntaxHighlighter.  If not, see <http://www.gnu.org/copyleft/lesser.html>.
 */
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;
/**
 * SyntaxHighlighter
 * http://alexgorbatchev.com/
 *
 * SyntaxHighlighter is donationware. If you are using it, please donate.
 * http://alexgorbatchev.com/wiki/SyntaxHighlighter:Donate
 *
 * @version
 * 2.0.320 (May 03 2009)
 * 
 * @copyright
 * Copyright (C) 2004-2009 Alex Gorbatchev.
 *
 * @license
 * This file is part of SyntaxHighlighter.
 * 
 * SyntaxHighlighter is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * SyntaxHighlighter is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with SyntaxHighlighter.  If not, see <http://www.gnu.org/copyleft/lesser.html>.
 */
SyntaxHighlighter.brushes.Plain = function()
{
};

SyntaxHighlighter.brushes.Plain.prototype = new SyntaxHighlighter.Highlighter();
SyntaxHighlighter.brushes.Plain.aliases = ['text', 'plain'];
;
/**
 * jQuery.ScrollTo - Easy element scrolling using jQuery.
 * Copyright (c) 2007-2008 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com
 * Dual licensed under MIT and GPL.
 * Date: 2/19/2008
 * @author Ariel Flesler
 * @version 1.3.3
 *
 * http://flesler.blogspot.com/2007/10/jqueryscrollto.html
 */
;(function($){var o=$.scrollTo=function(a,b,c){o.window().scrollTo(a,b,c)};o.defaults={axis:'y',duration:1};o.window=function(){return $($.browser.safari?'body':'html')};$.fn.scrollTo=function(l,m,n){if(typeof m=='object'){n=m;m=0}n=$.extend({},o.defaults,n);m=m||n.speed||n.duration;n.queue=n.queue&&n.axis.length>1;if(n.queue)m/=2;n.offset=j(n.offset);n.over=j(n.over);return this.each(function(){var a=this,b=$(a),t=l,c,d={},w=b.is('html,body');switch(typeof t){case'number':case'string':if(/^([+-]=)?\d+(px)?$/.test(t)){t=j(t);break}t=$(t,this);case'object':if(t.is||t.style)c=(t=$(t)).offset()}$.each(n.axis.split(''),function(i,f){var P=f=='x'?'Left':'Top',p=P.toLowerCase(),k='scroll'+P,e=a[k],D=f=='x'?'Width':'Height';if(c){d[k]=c[p]+(w?0:e-b.offset()[p]);if(n.margin){d[k]-=parseInt(t.css('margin'+P))||0;d[k]-=parseInt(t.css('border'+P+'Width'))||0}d[k]+=n.offset[p]||0;if(n.over[p])d[k]+=t[D.toLowerCase()]()*n.over[p]}else d[k]=t[p];if(/^\d+$/.test(d[k]))d[k]=d[k]<=0?0:Math.min(d[k],h(D));if(!i&&n.queue){if(e!=d[k])g(n.onAfterFirst);delete d[k]}});g(n.onAfter);function g(a){b.animate(d,m,n.easing,a&&function(){a.call(this,l)})};function h(D){var b=w?$.browser.opera?document.body:document.documentElement:a;return b['scroll'+D]-b['client'+D]}})};function j(a){return typeof a=='object'?a:{top:a,left:a}}})(jQuery);
;
/**
 * jQuery.LocalScroll - Animated scrolling navigation, using anchors.
 * Copyright (c) 2007-2008 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com
 * Dual licensed under MIT and GPL.
 * Date: 6/3/2008
 * @author Ariel Flesler
 * @version 1.2.6
 **/
;(function($){var g=location.href.replace(/#.*/,''),h=$.localScroll=function(a){$('body').localScroll(a)};h.defaults={duration:1e3,axis:'y',event:'click',stop:1};h.hash=function(a){a=$.extend({},h.defaults,a);a.hash=0;if(location.hash)setTimeout(function(){i(0,location,a)},0)};$.fn.localScroll=function(b){b=$.extend({},h.defaults,b);return(b.persistent||b.lazy)?this.bind(b.event,function(e){var a=$([e.target,e.target.parentNode]).filter(c)[0];a&&i(e,a,b)}):this.find('a,area').filter(c).bind(b.event,function(e){i(e,this,b)}).end().end();function c(){var a=this;return!!a.href&&!!a.hash&&a.href.replace(a.hash,'')==g&&(!b.filter||$(a).is(b.filter))}};function i(e,a,b){var c=a.hash.slice(1),d=document.getElementById(c)||document.getElementsByName(c)[0],f;if(d){e&&e.preventDefault();f=$(b.target||$.scrollTo.window());if(b.lock&&f.is(':animated')||b.onBefore&&b.onBefore.call(a,e,d,f)===!1)return;if(b.stop)f.queue('fx',[]).stop();f.scrollTo(d,b).trigger('notify.serialScroll',[d]);if(b.hash)f.queue(function(){location=a.hash;$(this).dequeue()})}}})(jQuery);
;
// $Id: tableofcontents.js,v 1.1.2.1.2.3.2.4 2009/07/21 04:54:40 alexiswilke Exp $

if (Drupal.jsEnabled) {
  toc_collapse = 0;
  toc_scroll_back_to_top = 0;
  $(document).ready( function () {
    // setup table
    if (toc_collapse) {
      $('.toc-list').hide();
      label = Drupal.t('show');
    }
    else {
      label = Drupal.t('hide');
    }
    $('.toc-toggle-message').html(' [<a href="#" class="toc-toggle">' + label + '</a>]');

    // allow toggling
    $('a.toc-toggle').click(function() {
      $('.toc-list').slideToggle();
      var text = $('a.toc-toggle').text();
      if (text == Drupal.t('hide')) {
        $('a.toc-toggle').text(Drupal.t('show'));
      }
      else {
        $('a.toc-toggle').text(Drupal.t('hide'));
      }
      return false;
    });

    // if available, do localScroll
    if (toc_scroll_back_to_top && $.localScroll) {
      $('.toc-list, .toc-back-to-top').localScroll({ hash: true });
    }
  });
}
;
// $Id: extlink.js,v 1.4.2.12 2010/05/26 01:25:56 quicksketch Exp $
(function ($) {

function extlinkAttach(context) {
  // Strip the host name down, removing ports, subdomains, or www.
  var pattern = /^(([^\/:]+?\.)*)([^\.:]{4,})((\.[a-z]{1,4})*)(:[0-9]{1,5})?$/;
  var host = window.location.host.replace(pattern, '$3$4');
  var subdomain = window.location.host.replace(pattern, '$1');

  // Determine what subdomains are considered internal.
  if (Drupal.settings.extlink.extSubdomains) {
    var subdomains = "([^/]*\\.)?";
  }
  else if (subdomain == 'www.' || subdomain == '') {
    var subdomains = "(www\\.)?";
  }
  else {
    var subdomains = subdomain.replace(".", "\\.");
  }

  // Build regular expressions that define an internal link.
  var internal_link = new RegExp("^https?://" + subdomains + host, "i");

  // Extra internal link matching.
  var extInclude = false;
  if (Drupal.settings.extlink.extInclude) {
    extInclude = new RegExp(Drupal.settings.extlink.extInclude.replace(/\\/, '\\'));
  }

  // Extra external link matching.
  var extExclude = false;
  if (Drupal.settings.extlink.extExclude) {
    extExclude = new RegExp(Drupal.settings.extlink.extExclude.replace(/\\/, '\\'));
  }

  // Find all links which are NOT internal and begin with http (as opposed
  // to ftp://, javascript:, etc. other kinds of links.
  // When operating on the 'this' variable, the host has been appended to
  // all links by the browser, even local ones.
  // In jQuery 1.1 and higher, we'd use a filter method here, but it is not
  // available in jQuery 1.0 (Drupal 5 default).
  var external_links = new Array();
  var mailto_links = new Array();
  $("a:not(." + Drupal.settings.extlink.extClass + ", ." + Drupal.settings.extlink.mailtoClass + ")", context).each(function(el) {
    try {
      var url = this.href.toLowerCase();
      if (url.indexOf('http') == 0 && (!url.match(internal_link) || (extInclude && url.match(extInclude))) && !(extExclude && url.match(extExclude))) {
        external_links.push(this);
      }
      else if (url.indexOf('mailto:') == 0) {
        mailto_links.push(this);
      }
    }
    // IE7 throws errors often when dealing with irregular links, such as:
    // <a href="node/10"></a> Empty tags.
    // <a href="http://user:pass@example.com">example</a> User:pass syntax.
    catch(error) {
      return false;
    }
  });

  if (Drupal.settings.extlink.extClass) {
    // Apply the "ext" class to all links not containing images.
    if (parseFloat($().jquery) < 1.2) {
      $(external_links).not('[img]').addClass(Drupal.settings.extlink.extClass).each(function() { if ($(this).css('display') == 'inline') $(this).after('<span class=' + Drupal.settings.extlink.extClass + '></span>'); });
    }
    else {
      $(external_links).not($(external_links).find('img').parents('a')).addClass(Drupal.settings.extlink.extClass).each(function() { if ($(this).css('display') == 'inline') $(this).after('<span class=' + Drupal.settings.extlink.extClass + '></span>'); });
    }
  }

  if (Drupal.settings.extlink.mailtoClass) {
    // Apply the "mailto" class to all mailto links not containing images.
    if (parseFloat($().jquery) < 1.2) {
      $(mailto_links).not('[img]').addClass(Drupal.settings.extlink.mailtoClass).each(function() { if ($(this).css('display') == 'inline') $(this).after('<span class=' + Drupal.settings.extlink.mailtoClass + '></span>'); });
    }
    else {
      $(mailto_links).not($(mailto_links).find('img').parents('a')).addClass(Drupal.settings.extlink.mailtoClass).each(function() { if ($(this).css('display') == 'inline') $(this).after('<span class=' + Drupal.settings.extlink.mailtoClass + '></span>'); });
    }
  }

  if (Drupal.settings.extlink.extTarget) {
    // Apply the target attribute to all links.
    $(external_links).attr('target', Drupal.settings.extlink.extTarget);
  }

  if (Drupal.settings.extlink.extAlert) {
    // Add pop-up click-through dialog.
    $(external_links).click(function(e) {
     return confirm(Drupal.settings.extlink.extAlertText);
    });
  }

  // Work around for Internet Explorer box model problems.
  if (($.support && !($.support.boxModel === undefined) && !$.support.boxModel) || ($.browser.msie && parseInt($.browser.version) <= 7)) {
    $('span.ext, span.mailto').css('display', 'inline-block');
  }
}

Drupal.behaviors.extlink = function(context) {
  extlinkAttach(context);
}

})(jQuery);
;
//Load custom styles into ckeditor stylescombo plugin.
$(document).ready(function() {
  try {

    CKEDITOR.addStylesSet( 'coredogs',
    [
      // Block Styles
      {name : 'Aside', element : 'p', attributes : {'class' : 'aside'}},
      {name : 'Pattern link' , element : 'p', attributes : {'class' : 'pattern_link'}},

      // Inline Styles
      {name : 'Code', element : 'code'},
      // {name : 'Thing', element : 'span', attributes : {'class' : 'thing'}},
      // {name : 'Marker: silly', element : 'span', styles : {'background-color' : 'green'}}
    ]);
    CKEDITOR.config.stylesCombo_stylesSet = 'coredogs';
  }
  catch(e){
    //Nothing
  }
});;

Drupal.behaviors.textarea = function(context) {
  $('textarea.resizable:not(.textarea-processed)', context).each(function() {
    // Avoid non-processed teasers.
    if ($(this).is(('textarea.teaser:not(.teaser-processed)'))) {
      return false;  
    }
    var textarea = $(this).addClass('textarea-processed'), staticOffset = null;

    // When wrapping the text area, work around an IE margin bug.  See:
    // http://jaspan.com/ie-inherited-margin-bug-form-elements-and-haslayout
    $(this).wrap('<div class="resizable-textarea"><span></span></div>')
      .parent().append($('<div class="grippie"></div>').mousedown(startDrag));

    var grippie = $('div.grippie', $(this).parent())[0];
    grippie.style.marginRight = (grippie.offsetWidth - $(this)[0].offsetWidth) +'px';

    function startDrag(e) {
      staticOffset = textarea.height() - e.pageY;
      textarea.css('opacity', 0.25);
      $(document).mousemove(performDrag).mouseup(endDrag);
      return false;
    }

    function performDrag(e) {
      textarea.height(Math.max(32, staticOffset + e.pageY) + 'px');
      return false;
    }

    function endDrag(e) {
      $(document).unbind("mousemove", performDrag).unbind("mouseup", endDrag);
      textarea.css('opacity', 1);
    }
  });
};
;
$(document).ready(function() {
  if (document.readyState != "complete"){
    //console.info('ready...');
    setTimeout( arguments.callee, 100 );
    return;
  }
  $(".book_nav_arrow_left_right")
       .add(".book_nav_arrow_up").each(function() {
    //Paramaters that control things.
    var light_opacity = 0.5;
    var dark_opacity = 1;
    var animation_speed = 'fast';
    //Start the code.
    var image = $(this);
    image.css(
      {
        opacity: light_opacity
      }
    );
    image.hover(
      function() {
        image.stop().animate(
          {
            opacity: dark_opacity
          },
          animation_speed
        );  // end animate()
      }, // end mouse over function
      function() {
        image.stop().animate(
          {
            opacity: light_opacity
          },
          animation_speed
        );  // end animate()
      }  // end mouse out function
    );  // end hover()
  });  // end each()
}); // end ready()
;
$(document).ready(function() {
//  if (document.readyState != "complete"){
//    //console.info('ready...');
//    setTimeout( arguments.callee, 100 );
//    return;
//  }
  $("#menu li").hover(
    function() {
//      var target_height = $(this).height() + 5;
      if ( parseInt($(this).css('top')) == 0 ) {
        $(this).animate(
          {
            'top': -3
  //          ,'height': target_height
          },
          'fast'
        );
      }
    }, // end mouse over function
    function() {
//      var target_height = $(this).height() - 5;
//      if ( parseInt($(this).css('top')) < 0 ) {
        $(this).animate(
          {
            'top': 0
  //          ,'height': target_height
          },
          'fast'
        );
//      }
    }  // end mouse out function
  );  // end hover()
}); // end ready()
;
$(document).ready(function() {
  $("#header_house").css('opacity', 0);
  $("#logo_inner").hover(
    function() {
      $("#header_house").animate(
        {
          'opacity': 0.5
        },
        'fast'
      );
    }, // end mouse over function
    function() {
        $("#header_house").animate(
          {
            'opacity': 0
          },
          'fast'
        );
    }  // end mouse out function
  );  // end hover()
}); // end ready()
;