// $Id: jquery.js,v 1.12.2.3 2008/06/25 09:38:39 goba Exp $ 

/*
 * jQuery 1.2.6 - New Wave Javascript
 *
 * Copyright (c) 2008 John Resig (jquery.com)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * Date: 2008-05-24 14:22:17 -0400 (Sat, 24 May 2008)
 * Rev: 5685
 */
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// $Id: drupal.js,v 1.41.2.4 2009/07/21 08:59:10 goba Exp $

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>';
  }
};
;
// $Id: tabledrag.js,v 1.13.2.5 2009/06/18 12:24:24 goba Exp $

/**
 * Drag and drop table rows with field manipulation.
 *
 * Using the drupal_add_tabledrag() function, any table with weights or parent
 * relationships may be made into draggable tables. Columns containing a field
 * may optionally be hidden, providing a better user experience.
 *
 * Created tableDrag instances may be modified with custom behaviors by
 * overriding the .onDrag, .onDrop, .row.onSwap, and .row.onIndent methods.
 * See blocks.js for an example of adding additional functionality to tableDrag.
 */
Drupal.behaviors.tableDrag = function(context) {
  for (var base in Drupal.settings.tableDrag) {
    if (!$('#' + base + '.tabledrag-processed', context).size()) {
      var tableSettings = Drupal.settings.tableDrag[base];

      $('#' + base).filter(':not(.tabledrag-processed)').each(function() {
        // Create the new tableDrag instance. Save in the Drupal variable
        // to allow other scripts access to the object.
        Drupal.tableDrag[base] = new Drupal.tableDrag(this, tableSettings);
      });

      $('#' + base).addClass('tabledrag-processed');
    }
  }
};

/**
 * Constructor for the tableDrag object. Provides table and field manipulation.
 *
 * @param table
 *   DOM object for the table to be made draggable.
 * @param tableSettings
 *   Settings for the table added via drupal_add_dragtable().
 */
Drupal.tableDrag = function(table, tableSettings) {
  var self = this;

  // Required object variables.
  this.table = table;
  this.tableSettings = tableSettings;
  this.dragObject = null; // Used to hold information about a current drag operation.
  this.rowObject = null; // Provides operations for row manipulation.
  this.oldRowElement = null; // Remember the previous element.
  this.oldY = 0; // Used to determine up or down direction from last mouse move.
  this.changed = false; // Whether anything in the entire table has changed.
  this.maxDepth = 0; // Maximum amount of allowed parenting.
  this.rtl = $(this.table).css('direction') == 'rtl' ? -1 : 1; // Direction of the table.

  // Configure the scroll settings.
  this.scrollSettings = { amount: 4, interval: 50, trigger: 70 };
  this.scrollInterval = null;
  this.scrollY = 0;
  this.windowHeight = 0;

  // Check this table's settings to see if there are parent relationships in
  // this table. For efficiency, large sections of code can be skipped if we
  // don't need to track horizontal movement and indentations.
  this.indentEnabled = false;
  for (group in tableSettings) {
    for (n in tableSettings[group]) {
      if (tableSettings[group][n]['relationship'] == 'parent') {
        this.indentEnabled = true;
      }
      if (tableSettings[group][n]['limit'] > 0) {
        this.maxDepth = tableSettings[group][n]['limit'];
      }
    }
  }
  if (this.indentEnabled) {
    this.indentCount = 1; // Total width of indents, set in makeDraggable.
    // Find the width of indentations to measure mouse movements against.
    // Because the table doesn't need to start with any indentations, we
    // manually append 2 indentations in the first draggable row, measure
    // the offset, then remove.
    var indent = Drupal.theme('tableDragIndentation');
    // Match immediate children of the parent element to allow nesting.
    var testCell = $('> tbody > tr.draggable:first td:first, > tr.draggable:first td:first', table).prepend(indent).prepend(indent);
    this.indentAmount = $('.indentation', testCell).get(1).offsetLeft - $('.indentation', testCell).get(0).offsetLeft;
    $('.indentation', testCell).slice(0, 2).remove();
  }

  // Make each applicable row draggable.
  // Match immediate children of the parent element to allow nesting.
  $('> tr.draggable, > tbody > tr.draggable', table).each(function() { self.makeDraggable(this); });

  // Hide columns containing affected form elements.
  this.hideColumns();

  // Add mouse bindings to the document. The self variable is passed along
  // as event handlers do not have direct access to the tableDrag object.
  $(document).bind('mousemove', function(event) { return self.dragRow(event, self); });
  $(document).bind('mouseup', function(event) { return self.dropRow(event, self); });
};

/**
 * Hide the columns containing form elements according to the settings for
 * this tableDrag instance.
 */
Drupal.tableDrag.prototype.hideColumns = function(){
  for (var group in this.tableSettings) {
    // Find the first field in this group.
    for (var d in this.tableSettings[group]) {
      var field = $('.' + this.tableSettings[group][d]['target'] + ':first', this.table);
      if (field.size() && this.tableSettings[group][d]['hidden']) {
        var hidden = this.tableSettings[group][d]['hidden'];
        var cell = field.parents('td:first');
        break;
      }
    }

    // Hide the column containing this field.
    if (hidden && cell[0] && cell.css('display') != 'none') {
      // Add 1 to our indexes. The nth-child selector is 1 based, not 0 based.
      // Match immediate children of the parent element to allow nesting.
      var columnIndex = $('> td', cell.parent()).index(cell.get(0)) + 1;
      var headerIndex = $('> td:not(:hidden)', cell.parent()).index(cell.get(0)) + 1;
      $('> thead > tr, > tbody > tr, > tr', this.table).each(function(){
        var row = $(this);
        var parentTag = row.parent().get(0).tagName.toLowerCase();
        var index = (parentTag == 'thead') ? headerIndex : columnIndex;

        // Adjust the index to take into account colspans.
        row.children().each(function(n) {
          if (n < index) {
            index -= (this.colSpan && this.colSpan > 1) ? this.colSpan - 1 : 0;
          }
        });
        if (index > 0) {
          cell = row.children(':nth-child(' + index + ')');
          if (cell[0].colSpan > 1) {
            // If this cell has a colspan, simply reduce it.
            cell[0].colSpan = cell[0].colSpan - 1;
          }
          else {
            // Hide table body cells, but remove table header cells entirely
            // (Safari doesn't hide properly).
            parentTag == 'thead' ? cell.remove() : cell.css('display', 'none');
          }
        }
      });
    }
  }
};

/**
 * Find the target used within a particular row and group.
 */
Drupal.tableDrag.prototype.rowSettings = function(group, row) {
  var field = $('.' + group, row);
  for (delta in this.tableSettings[group]) {
    var targetClass = this.tableSettings[group][delta]['target'];
    if (field.is('.' + targetClass)) {
      // Return a copy of the row settings.
      var rowSettings = new Object();
      for (var n in this.tableSettings[group][delta]) {
        rowSettings[n] = this.tableSettings[group][delta][n];
      }
      return rowSettings;
    }
  }
};

/**
 * Take an item and add event handlers to make it become draggable.
 */
Drupal.tableDrag.prototype.makeDraggable = function(item) {
  var self = this;

  // Create the handle.
  var handle = $('<a href="#" class="tabledrag-handle"><div class="handle">&nbsp;</div></a>').attr('title', Drupal.t('Drag to re-order'));
  // Insert the handle after indentations (if any).
  if ($('td:first .indentation:last', item).after(handle).size()) {
    // Update the total width of indentation in this entire table.
    self.indentCount = Math.max($('.indentation', item).size(), self.indentCount);
  }
  else {
    $('td:first', item).prepend(handle);
  }

  // Add hover action for the handle.
  handle.hover(function() {
    self.dragObject == null ? $(this).addClass('tabledrag-handle-hover') : null;
  }, function() {
    self.dragObject == null ? $(this).removeClass('tabledrag-handle-hover') : null;
  });

  // Add the mousedown action for the handle.
  handle.mousedown(function(event) {
    // Create a new dragObject recording the event information.
    self.dragObject = new Object();
    self.dragObject.initMouseOffset = self.getMouseOffset(item, event);
    self.dragObject.initMouseCoords = self.mouseCoords(event);
    if (self.indentEnabled) {
      self.dragObject.indentMousePos = self.dragObject.initMouseCoords;
    }

    // If there's a lingering row object from the keyboard, remove its focus.
    if (self.rowObject) {
      $('a.tabledrag-handle', self.rowObject.element).blur();
    }

    // Create a new rowObject for manipulation of this row.
    self.rowObject = new self.row(item, 'mouse', self.indentEnabled, self.maxDepth, true);

    // Save the position of the table.
    self.table.topY = self.getPosition(self.table).y;
    self.table.bottomY = self.table.topY + self.table.offsetHeight;

    // Add classes to the handle and row.
    $(this).addClass('tabledrag-handle-hover');
    $(item).addClass('drag');

    // Set the document to use the move cursor during drag.
    $('body').addClass('drag');
    if (self.oldRowElement) {
      $(self.oldRowElement).removeClass('drag-previous');
    }

    // Hack for IE6 that flickers uncontrollably if select lists are moved.
    if (navigator.userAgent.indexOf('MSIE 6.') != -1) {
      $('select', this.table).css('display', 'none');
    }

    // Hack for Konqueror, prevent the blur handler from firing.
    // Konqueror always gives links focus, even after returning false on mousedown.
    self.safeBlur = false;

    // Call optional placeholder function.
    self.onDrag();
    return false;
  });

  // Prevent the anchor tag from jumping us to the top of the page.
  handle.click(function() {
    return false;
  });

  // Similar to the hover event, add a class when the handle is focused.
  handle.focus(function() {
    $(this).addClass('tabledrag-handle-hover');
    self.safeBlur = true;
  });

  // Remove the handle class on blur and fire the same function as a mouseup.
  handle.blur(function(event) {
    $(this).removeClass('tabledrag-handle-hover');
    if (self.rowObject && self.safeBlur) {
      self.dropRow(event, self);
    }
  });

  // Add arrow-key support to the handle.
  handle.keydown(function(event) {
    // If a rowObject doesn't yet exist and this isn't the tab key.
    if (event.keyCode != 9 && !self.rowObject) {
      self.rowObject = new self.row(item, 'keyboard', self.indentEnabled, self.maxDepth, true);
    }

    var keyChange = false;
    switch (event.keyCode) {
      case 37: // Left arrow.
      case 63234: // Safari left arrow.
        keyChange = true;
        self.rowObject.indent(-1 * self.rtl);
        break;
      case 38: // Up arrow.
      case 63232: // Safari up arrow.
        var previousRow = $(self.rowObject.element).prev('tr').get(0);
        while (previousRow && $(previousRow).is(':hidden')) {
          previousRow = $(previousRow).prev('tr').get(0);
        }
        if (previousRow) {
          self.safeBlur = false; // Do not allow the onBlur cleanup.
          self.rowObject.direction = 'up';
          keyChange = true;

          if ($(item).is('.tabledrag-root')) {
            // Swap with the previous top-level row..
            var groupHeight = 0;
            while (previousRow && $('.indentation', previousRow).size()) {
              previousRow = $(previousRow).prev('tr').get(0);
              groupHeight += $(previousRow).is(':hidden') ? 0 : previousRow.offsetHeight;
            }
            if (previousRow) {
              self.rowObject.swap('before', previousRow);
              // No need to check for indentation, 0 is the only valid one.
              window.scrollBy(0, -groupHeight);
            }
          }
          else if (self.table.tBodies[0].rows[0] != previousRow || $(previousRow).is('.draggable')) {
            // Swap with the previous row (unless previous row is the first one
            // and undraggable).
            self.rowObject.swap('before', previousRow);
            self.rowObject.interval = null;
            self.rowObject.indent(0);
            window.scrollBy(0, -parseInt(item.offsetHeight));
          }
          handle.get(0).focus(); // Regain focus after the DOM manipulation.
        }
        break;
      case 39: // Right arrow.
      case 63235: // Safari right arrow.
        keyChange = true;
        self.rowObject.indent(1 * self.rtl);
        break;
      case 40: // Down arrow.
      case 63233: // Safari down arrow.
        var nextRow = $(self.rowObject.group).filter(':last').next('tr').get(0);
        while (nextRow && $(nextRow).is(':hidden')) {
          nextRow = $(nextRow).next('tr').get(0);
        }
        if (nextRow) {
          self.safeBlur = false; // Do not allow the onBlur cleanup.
          self.rowObject.direction = 'down';
          keyChange = true;

          if ($(item).is('.tabledrag-root')) {
            // Swap with the next group (necessarily a top-level one).
            var groupHeight = 0;
            nextGroup = new self.row(nextRow, 'keyboard', self.indentEnabled, self.maxDepth, false);
            if (nextGroup) {
              $(nextGroup.group).each(function () {groupHeight += $(this).is(':hidden') ? 0 : this.offsetHeight});
              nextGroupRow = $(nextGroup.group).filter(':last').get(0);
              self.rowObject.swap('after', nextGroupRow);
              // No need to check for indentation, 0 is the only valid one.
              window.scrollBy(0, parseInt(groupHeight));
            }
          }
          else {
            // Swap with the next row.
            self.rowObject.swap('after', nextRow);
            self.rowObject.interval = null;
            self.rowObject.indent(0);
            window.scrollBy(0, parseInt(item.offsetHeight));
          }
          handle.get(0).focus(); // Regain focus after the DOM manipulation.
        }
        break;
    }

    if (self.rowObject && self.rowObject.changed == true) {
      $(item).addClass('drag');
      if (self.oldRowElement) {
        $(self.oldRowElement).removeClass('drag-previous');
      }
      self.oldRowElement = item;
      self.restripeTable();
      self.onDrag();
    }

    // Returning false if we have an arrow key to prevent scrolling.
    if (keyChange) {
      return false;
    }
  });

  // Compatibility addition, return false on keypress to prevent unwanted scrolling.
  // IE and Safari will supress scrolling on keydown, but all other browsers
  // need to return false on keypress. http://www.quirksmode.org/js/keys.html
  handle.keypress(function(event) {
    switch (event.keyCode) {
      case 37: // Left arrow.
      case 38: // Up arrow.
      case 39: // Right arrow.
      case 40: // Down arrow.
        return false;
    }
  });
};

/**
 * Mousemove event handler, bound to document.
 */
Drupal.tableDrag.prototype.dragRow = function(event, self) {
  if (self.dragObject) {
    self.currentMouseCoords = self.mouseCoords(event);

    var y = self.currentMouseCoords.y - self.dragObject.initMouseOffset.y;
    var x = self.currentMouseCoords.x - self.dragObject.initMouseOffset.x;

    // Check for row swapping and vertical scrolling.
    if (y != self.oldY) {
      self.rowObject.direction = y > self.oldY ? 'down' : 'up';
      self.oldY = y; // Update the old value.

      // Check if the window should be scrolled (and how fast).
      var scrollAmount = self.checkScroll(self.currentMouseCoords.y);
      // Stop any current scrolling.
      clearInterval(self.scrollInterval);
      // Continue scrolling if the mouse has moved in the scroll direction.
      if (scrollAmount > 0 && self.rowObject.direction == 'down' || scrollAmount < 0 && self.rowObject.direction == 'up') {
        self.setScroll(scrollAmount);
      }

      // If we have a valid target, perform the swap and restripe the table.
      var currentRow = self.findDropTargetRow(x, y);
      if (currentRow) {
        if (self.rowObject.direction == 'down') {
          self.rowObject.swap('after', currentRow, self);
        }
        else {
          self.rowObject.swap('before', currentRow, self);
        }
        self.restripeTable();
      }
    }

    // Similar to row swapping, handle indentations.
    if (self.indentEnabled) {
      var xDiff = self.currentMouseCoords.x - self.dragObject.indentMousePos.x;
      // Set the number of indentations the mouse has been moved left or right.
      var indentDiff = Math.round(xDiff / self.indentAmount * self.rtl);
      // Indent the row with our estimated diff, which may be further
      // restricted according to the rows around this row.
      var indentChange = self.rowObject.indent(indentDiff);
      // Update table and mouse indentations.
      self.dragObject.indentMousePos.x += self.indentAmount * indentChange * self.rtl;
      self.indentCount = Math.max(self.indentCount, self.rowObject.indents);
    }

    return false;
  }
};

/**
 * Mouseup event handler, bound to document.
 * Blur event handler, bound to drag handle for keyboard support.
 */
Drupal.tableDrag.prototype.dropRow = function(event, self) {
  // Drop row functionality shared between mouseup and blur events.
  if (self.rowObject != null) {
    var droppedRow = self.rowObject.element;
    // The row is already in the right place so we just release it.
    if (self.rowObject.changed == true) {
      // Update the fields in the dropped row.
      self.updateFields(droppedRow);

      // If a setting exists for affecting the entire group, update all the
      // fields in the entire dragged group.
      for (var group in self.tableSettings) {
        var rowSettings = self.rowSettings(group, droppedRow);
        if (rowSettings.relationship == 'group') {
          for (n in self.rowObject.children) {
            self.updateField(self.rowObject.children[n], group);
          }
        }
      }

      self.rowObject.markChanged();
      if (self.changed == false) {
        $(Drupal.theme('tableDragChangedWarning')).insertAfter(self.table).hide().fadeIn('slow');
        self.changed = true;
      }
    }

    if (self.indentEnabled) {
      self.rowObject.removeIndentClasses();
    }
    if (self.oldRowElement) {
      $(self.oldRowElement).removeClass('drag-previous');
    }
    $(droppedRow).removeClass('drag').addClass('drag-previous');
    self.oldRowElement = droppedRow;
    self.onDrop();
    self.rowObject = null;
  }

  // Functionality specific only to mouseup event.
  if (self.dragObject != null) {
    $('.tabledrag-handle', droppedRow).removeClass('tabledrag-handle-hover');

    self.dragObject = null;
    $('body').removeClass('drag');
    clearInterval(self.scrollInterval);

    // Hack for IE6 that flickers uncontrollably if select lists are moved.
    if (navigator.userAgent.indexOf('MSIE 6.') != -1) {
      $('select', this.table).css('display', 'block');
    }
  }
};

/**
 * Get the position of an element by adding up parent offsets in the DOM tree.
 */
Drupal.tableDrag.prototype.getPosition = function(element){
  var left = 0;
  var top  = 0;
  // Because Safari doesn't report offsetHeight on table rows, but does on table
  // cells, grab the firstChild of the row and use that instead.
  // http://jacob.peargrove.com/blog/2006/technical/table-row-offsettop-bug-in-safari
  if (element.offsetHeight == 0) {
    element = element.firstChild; // a table cell
  }

  while (element.offsetParent){
    left   += element.offsetLeft;
    top    += element.offsetTop;
    element = element.offsetParent;
  }

  left += element.offsetLeft;
  top  += element.offsetTop;

  return {x:left, y:top};
};

/**
 * Get the mouse coordinates from the event (allowing for browser differences).
 */
Drupal.tableDrag.prototype.mouseCoords = function(event){
  if (event.pageX || event.pageY) {
    return {x:event.pageX, y:event.pageY};
  }
  return {
    x:event.clientX + document.body.scrollLeft - document.body.clientLeft,
    y:event.clientY + document.body.scrollTop  - document.body.clientTop
  };
};

/**
 * Given a target element and a mouse event, get the mouse offset from that
 * element. To do this we need the element's position and the mouse position.
 */
Drupal.tableDrag.prototype.getMouseOffset = function(target, event) {
  var docPos   = this.getPosition(target);
  var mousePos = this.mouseCoords(event);
  return {x:mousePos.x - docPos.x, y:mousePos.y - docPos.y};
};

/**
 * Find the row the mouse is currently over. This row is then taken and swapped
 * with the one being dragged.
 *
 * @param x
 *   The x coordinate of the mouse on the page (not the screen).
 * @param y
 *   The y coordinate of the mouse on the page (not the screen).
 */
Drupal.tableDrag.prototype.findDropTargetRow = function(x, y) {
  var rows = this.table.tBodies[0].rows;
  for (var n=0; n<rows.length; n++) {
    var row = rows[n];
    var indentDiff = 0;
    // Safari fix see Drupal.tableDrag.prototype.getPosition()
    if (row.offsetHeight == 0) {
      var rowY = this.getPosition(row.firstChild).y;
      var rowHeight = parseInt(row.firstChild.offsetHeight)/2;
    }
    // Other browsers.
    else {
      var rowY = this.getPosition(row).y;
      var rowHeight = parseInt(row.offsetHeight)/2;
    }

    // Because we always insert before, we need to offset the height a bit.
    if ((y > (rowY - rowHeight)) && (y < (rowY + rowHeight))) {
      if (this.indentEnabled) {
        // Check that this row is not a child of the row being dragged.
        for (n in this.rowObject.group) {
          if (this.rowObject.group[n] == row) {
            return null;
          }
        }
      }
      // Check that swapping with this row is allowed.
      if (!this.rowObject.isValidSwap(row)) {
        return null;
      }

      // We may have found the row the mouse just passed over, but it doesn't
      // take into account hidden rows. Skip backwards until we find a draggable
      // row.
      while ($(row).is(':hidden') && $(row).prev('tr').is(':hidden')) {
        row = $(row).prev('tr').get(0);
      }
      return row;
    }
  }
  return null;
};

/**
 * After the row is dropped, update the table fields according to the settings
 * set for this table.
 *
 * @param changedRow
 *   DOM object for the row that was just dropped.
 */
Drupal.tableDrag.prototype.updateFields = function(changedRow) {
  for (var group in this.tableSettings) {
    // Each group may have a different setting for relationship, so we find
    // the source rows for each seperately.
    this.updateField(changedRow, group);
  }
};

/**
 * After the row is dropped, update a single table field according to specific
 * settings.
 *
 * @param changedRow
 *   DOM object for the row that was just dropped.
 * @param group
 *   The settings group on which field updates will occur.
 */
Drupal.tableDrag.prototype.updateField = function(changedRow, group) {
  var rowSettings = this.rowSettings(group, changedRow);

  // Set the row as it's own target.
  if (rowSettings.relationship == 'self' || rowSettings.relationship == 'group') {
    var sourceRow = changedRow;
  }
  // Siblings are easy, check previous and next rows.
  else if (rowSettings.relationship == 'sibling') {
    var previousRow = $(changedRow).prev('tr').get(0);
    var nextRow = $(changedRow).next('tr').get(0);
    var sourceRow = changedRow;
    if ($(previousRow).is('.draggable') && $('.' + group, previousRow).length) {
      if (this.indentEnabled) {
        if ($('.indentations', previousRow).size() == $('.indentations', changedRow)) {
          sourceRow = previousRow;
        }
      }
      else {
        sourceRow = previousRow;
      }
    }
    else if ($(nextRow).is('.draggable') && $('.' + group, nextRow).length) {
      if (this.indentEnabled) {
        if ($('.indentations', nextRow).size() == $('.indentations', changedRow)) {
          sourceRow = nextRow;
        }
      }
      else {
        sourceRow = nextRow;
      }
    }
  }
  // Parents, look up the tree until we find a field not in this group.
  // Go up as many parents as indentations in the changed row.
  else if (rowSettings.relationship == 'parent') {
    var previousRow = $(changedRow).prev('tr');
    while (previousRow.length && $('.indentation', previousRow).length >= this.rowObject.indents) {
      previousRow = previousRow.prev('tr');
    }
    // If we found a row.
    if (previousRow.length) {
      sourceRow = previousRow[0];
    }
    // Otherwise we went all the way to the left of the table without finding
    // a parent, meaning this item has been placed at the root level.
    else {
      // Use the first row in the table as source, because it's garanteed to
      // be at the root level. Find the first item, then compare this row
      // against it as a sibling.
      sourceRow = $('tr.draggable:first').get(0);
      if (sourceRow == this.rowObject.element) {
        sourceRow = $(this.rowObject.group[this.rowObject.group.length - 1]).next('tr.draggable').get(0);
      }
      var useSibling = true;
    }
  }

  // Because we may have moved the row from one category to another,
  // take a look at our sibling and borrow its sources and targets.
  this.copyDragClasses(sourceRow, changedRow, group);
  rowSettings = this.rowSettings(group, changedRow);

  // In the case that we're looking for a parent, but the row is at the top
  // of the tree, copy our sibling's values.
  if (useSibling) {
    rowSettings.relationship = 'sibling';
    rowSettings.source = rowSettings.target;
  }

  var targetClass = '.' + rowSettings.target;
  var targetElement = $(targetClass, changedRow).get(0);

  // Check if a target element exists in this row.
  if (targetElement) {
    var sourceClass = '.' + rowSettings.source;
    var sourceElement = $(sourceClass, sourceRow).get(0);
    switch (rowSettings.action) {
      case 'depth':
        // Get the depth of the target row.
        targetElement.value = $('.indentation', $(sourceElement).parents('tr:first')).size();
        break;
      case 'match':
        // Update the value.
        targetElement.value = sourceElement.value;
        break;
      case 'order':
        var siblings = this.rowObject.findSiblings(rowSettings);
        if ($(targetElement).is('select')) {
          // Get a list of acceptable values.
          var values = new Array();
          $('option', targetElement).each(function() {
            values.push(this.value);
          });
          var maxVal = values[values.length - 1];
          // Populate the values in the siblings.
          $(targetClass, siblings).each(function() {
            // If there are more items than possible values, assign the maximum value to the row. 
            if (values.length > 0) {
              this.value = values.shift();
            }
            else {
              this.value = maxVal;
            }
          });
        }
        else {
          // Assume a numeric input field.
          var weight = parseInt($(targetClass, siblings[0]).val()) || 0;
          $(targetClass, siblings).each(function() {
            this.value = weight;
            weight++;
          });
        }
        break;
    }
  }
};

/**
 * Copy all special tableDrag classes from one row's form elements to a
 * different one, removing any special classes that the destination row
 * may have had.
 */
Drupal.tableDrag.prototype.copyDragClasses = function(sourceRow, targetRow, group) {
  var sourceElement = $('.' + group, sourceRow);
  var targetElement = $('.' + group, targetRow);
  if (sourceElement.length && targetElement.length) {
    targetElement[0].className = sourceElement[0].className;
  }
};

Drupal.tableDrag.prototype.checkScroll = function(cursorY) {
  var de  = document.documentElement;
  var b  = document.body;

  var windowHeight = this.windowHeight = window.innerHeight || (de.clientHeight && de.clientWidth != 0 ? de.clientHeight : b.offsetHeight);
  var scrollY = this.scrollY = (document.all ? (!de.scrollTop ? b.scrollTop : de.scrollTop) : (window.pageYOffset ? window.pageYOffset : window.scrollY));
  var trigger = this.scrollSettings.trigger;
  var delta = 0;

  // Return a scroll speed relative to the edge of the screen.
  if (cursorY - scrollY > windowHeight - trigger) {
    delta = trigger / (windowHeight + scrollY - cursorY);
    delta = (delta > 0 && delta < trigger) ? delta : trigger;
    return delta * this.scrollSettings.amount;
  }
  else if (cursorY - scrollY < trigger) {
    delta = trigger / (cursorY - scrollY);
    delta = (delta > 0 && delta < trigger) ? delta : trigger;
    return -delta * this.scrollSettings.amount;
  }
};

Drupal.tableDrag.prototype.setScroll = function(scrollAmount) {
  var self = this;

  this.scrollInterval = setInterval(function() {
    // Update the scroll values stored in the object.
    self.checkScroll(self.currentMouseCoords.y);
    var aboveTable = self.scrollY > self.table.topY;
    var belowTable = self.scrollY + self.windowHeight < self.table.bottomY;
    if (scrollAmount > 0 && belowTable || scrollAmount < 0 && aboveTable) {
      window.scrollBy(0, scrollAmount);
    }
  }, this.scrollSettings.interval);
};

Drupal.tableDrag.prototype.restripeTable = function() {
  // :even and :odd are reversed because jquery counts from 0 and
  // we count from 1, so we're out of sync.
  // Match immediate children of the parent element to allow nesting.
  $('> tbody > tr.draggable, > tr.draggable', this.table)
    .filter(':odd').filter('.odd')
      .removeClass('odd').addClass('even')
    .end().end()
    .filter(':even').filter('.even')
      .removeClass('even').addClass('odd');
};

/**
 * Stub function. Allows a custom handler when a row begins dragging.
 */
Drupal.tableDrag.prototype.onDrag = function() {
  return null;
};

/**
 * Stub function. Allows a custom handler when a row is dropped.
 */
Drupal.tableDrag.prototype.onDrop = function() {
  return null;
};

/**
 * Constructor to make a new object to manipulate a table row.
 *
 * @param tableRow
 *   The DOM element for the table row we will be manipulating.
 * @param method
 *   The method in which this row is being moved. Either 'keyboard' or 'mouse'.
 * @param indentEnabled
 *   Whether the containing table uses indentations. Used for optimizations.
 * @param maxDepth
 *   The maximum amount of indentations this row may contain.
 * @param addClasses
 *   Whether we want to add classes to this row to indicate child relationships.
 */
Drupal.tableDrag.prototype.row = function(tableRow, method, indentEnabled, maxDepth, addClasses) {
  this.element = tableRow;
  this.method = method;
  this.group = new Array(tableRow);
  this.groupDepth = $('.indentation', tableRow).size();
  this.changed = false;
  this.table = $(tableRow).parents('table:first').get(0);
  this.indentEnabled = indentEnabled;
  this.maxDepth = maxDepth;
  this.direction = ''; // Direction the row is being moved.

  if (this.indentEnabled) {
    this.indents = $('.indentation', tableRow).size();
    this.children = this.findChildren(addClasses);
    this.group = $.merge(this.group, this.children);
    // Find the depth of this entire group.
    for (var n = 0; n < this.group.length; n++) {
      this.groupDepth = Math.max($('.indentation', this.group[n]).size(), this.groupDepth);
    }
  }
};

/**
 * Find all children of rowObject by indentation.
 *
 * @param addClasses
 *   Whether we want to add classes to this row to indicate child relationships.
 */
Drupal.tableDrag.prototype.row.prototype.findChildren = function(addClasses) {
  var parentIndentation = this.indents;
  var currentRow = $(this.element, this.table).next('tr.draggable');
  var rows = new Array();
  var child = 0;
  while (currentRow.length) {
    var rowIndentation = $('.indentation', currentRow).length;
    // A greater indentation indicates this is a child.
    if (rowIndentation > parentIndentation) {
      child++;
      rows.push(currentRow[0]);
      if (addClasses) {
        $('.indentation', currentRow).each(function(indentNum) {
          if (child == 1 && (indentNum == parentIndentation)) {
            $(this).addClass('tree-child-first');
          }
          if (indentNum == parentIndentation) {
            $(this).addClass('tree-child');
          }
          else if (indentNum > parentIndentation) {
            $(this).addClass('tree-child-horizontal');
          }
        });
      }
    }
    else {
      break;
    }
    currentRow = currentRow.next('tr.draggable');
  }
  if (addClasses && rows.length) {
    $('.indentation:nth-child(' + (parentIndentation + 1) + ')', rows[rows.length - 1]).addClass('tree-child-last');
  }
  return rows;
};

/**
 * Ensure that two rows are allowed to be swapped.
 *
 * @param row
 *   DOM object for the row being considered for swapping.
 */
Drupal.tableDrag.prototype.row.prototype.isValidSwap = function(row) {
  if (this.indentEnabled) {
    var prevRow, nextRow;
    if (this.direction == 'down') {
      prevRow = row;
      nextRow = $(row).next('tr').get(0);
    }
    else {
      prevRow = $(row).prev('tr').get(0);
      nextRow = row;
    }
    this.interval = this.validIndentInterval(prevRow, nextRow);

    // We have an invalid swap if the valid indentations interval is empty.
    if (this.interval.min > this.interval.max) {
      return false;
    }
  }

  // Do not let an un-draggable first row have anything put before it.
  if (this.table.tBodies[0].rows[0] == row && $(row).is(':not(.draggable)')) {
    return false;
  }

  return true;
};

/**
 * Perform the swap between two rows.
 *
 * @param position
 *   Whether the swap will occur 'before' or 'after' the given row.
 * @param row
 *   DOM element what will be swapped with the row group.
 */
Drupal.tableDrag.prototype.row.prototype.swap = function(position, row) {
  $(row)[position](this.group);
  this.changed = true;
  this.onSwap(row);
};

/**
 * Determine the valid indentations interval for the row at a given position
 * in the table.
 *
 * @param prevRow
 *   DOM object for the row before the tested position
 *   (or null for first position in the table).
 * @param nextRow
 *   DOM object for the row after the tested position
 *   (or null for last position in the table).
 */
Drupal.tableDrag.prototype.row.prototype.validIndentInterval = function (prevRow, nextRow) {
  var minIndent, maxIndent;

  // Minimum indentation:
  // Do not orphan the next row.
  minIndent = nextRow ? $('.indentation', nextRow).size() : 0;

  // Maximum indentation:
  if (!prevRow || $(this.element).is('.tabledrag-root')) {
    // Do not indent the first row in the table or 'root' rows..
    maxIndent = 0;
  }
  else {
    // Do not go deeper than as a child of the previous row.
    maxIndent = $('.indentation', prevRow).size() + ($(prevRow).is('.tabledrag-leaf') ? 0 : 1);
    // Limit by the maximum allowed depth for the table.
    if (this.maxDepth) {
      maxIndent = Math.min(maxIndent, this.maxDepth - (this.groupDepth - this.indents));
    }
  }

  return {'min':minIndent, 'max':maxIndent};
}

/**
 * Indent a row within the legal bounds of the table.
 *
 * @param indentDiff
 *   The number of additional indentations proposed for the row (can be
 *   positive or negative). This number will be adjusted to nearest valid
 *   indentation level for the row.
 */
Drupal.tableDrag.prototype.row.prototype.indent = function(indentDiff) {
  // Determine the valid indentations interval if not available yet.
  if (!this.interval) {
    prevRow = $(this.element).prev('tr').get(0);
    nextRow = $(this.group).filter(':last').next('tr').get(0);
    this.interval = this.validIndentInterval(prevRow, nextRow);
  }

  // Adjust to the nearest valid indentation.
  var indent = this.indents + indentDiff;
  indent = Math.max(indent, this.interval.min);
  indent = Math.min(indent, this.interval.max);
  indentDiff = indent - this.indents;

  for (var n = 1; n <= Math.abs(indentDiff); n++) {
    // Add or remove indentations.
    if (indentDiff < 0) {
      $('.indentation:first', this.group).remove();
      this.indents--;
    }
    else {
      $('td:first', this.group).prepend(Drupal.theme('tableDragIndentation'));
      this.indents++;
    }
  }
  if (indentDiff) {
    // Update indentation for this row.
    this.changed = true;
    this.groupDepth += indentDiff;
    this.onIndent();
  }

  return indentDiff;
};

/**
 * Find all siblings for a row, either according to its subgroup or indentation.
 * Note that the passed in row is included in the list of siblings.
 *
 * @param settings
 *   The field settings we're using to identify what constitutes a sibling.
 */
Drupal.tableDrag.prototype.row.prototype.findSiblings = function(rowSettings) {
  var siblings = new Array();
  var directions = new Array('prev', 'next');
  var rowIndentation = this.indents;
  for (var d in directions) {
    var checkRow = $(this.element)[directions[d]]();
    while (checkRow.length) {
      // Check that the sibling contains a similar target field.
      if ($('.' + rowSettings.target, checkRow)) {
        // Either add immediately if this is a flat table, or check to ensure
        // that this row has the same level of indentaiton.
        if (this.indentEnabled) {
          var checkRowIndentation = $('.indentation', checkRow).length
        }

        if (!(this.indentEnabled) || (checkRowIndentation == rowIndentation)) {
          siblings.push(checkRow[0]);
        }
        else if (checkRowIndentation < rowIndentation) {
          // No need to keep looking for siblings when we get to a parent.
          break;
        }
      }
      else {
        break;
      }
      checkRow = $(checkRow)[directions[d]]();
    }
    // Since siblings are added in reverse order for previous, reverse the
    // completed list of previous siblings. Add the current row and continue.
    if (directions[d] == 'prev') {
      siblings.reverse();
      siblings.push(this.element);
    }
  }
  return siblings;
};

/**
 * Remove indentation helper classes from the current row group.
 */
Drupal.tableDrag.prototype.row.prototype.removeIndentClasses = function() {
  for (n in this.children) {
    $('.indentation', this.children[n])
      .removeClass('tree-child')
      .removeClass('tree-child-first')
      .removeClass('tree-child-last')
      .removeClass('tree-child-horizontal');
  }
};

/**
 * Add an asterisk or other marker to the changed row.
 */
Drupal.tableDrag.prototype.row.prototype.markChanged = function() {
  var marker = Drupal.theme('tableDragChangedMarker');
  var cell = $('td:first', this.element);
  if ($('span.tabledrag-changed', cell).length == 0) {
    cell.append(marker);
  }
};

/**
 * Stub function. Allows a custom handler when a row is indented.
 */
Drupal.tableDrag.prototype.row.prototype.onIndent = function() {
  return null;
};

/**
 * Stub function. Allows a custom handler when a row is swapped.
 */
Drupal.tableDrag.prototype.row.prototype.onSwap = function(swappedRow) {
  return null;
};

Drupal.theme.prototype.tableDragChangedMarker = function () {
  return '<span class="warning tabledrag-changed">*</span>';
};

Drupal.theme.prototype.tableDragIndentation = function () {
  return '<div class="indentation">&nbsp;</div>';
};

Drupal.theme.prototype.tableDragChangedWarning = function () {
  return '<div class="warning">' + Drupal.theme('tableDragChangedMarker') + ' ' + Drupal.t("Changes made in this table will not be saved until the form is submitted.") + '</div>';
};
;
/* $Id: admin_menu.js,v 1.7.2.9 2010/02/20 23:53:18 sun Exp $ */

$(document).ready(function() {
  if (!$('#admin-menu').length) {
    return;
  }

  // Apply margin-top if enabled; directly applying marginTop doesn't work in IE.
  if (Drupal && Drupal.settings && Drupal.settings.admin_menu) {
    if (Drupal.settings.admin_menu.margin_top) {
      $('body').addClass('admin-menu');
    }
    if (Drupal.settings.admin_menu.position_fixed) {
      $('#admin-menu').css('position', 'fixed');
    }
    // Move page tabs into administration menu.
    if (Drupal.settings.admin_menu.tweak_tabs) {
      $('ul.tabs.primary li').each(function() {
        $(this).addClass('admin-menu-tab').appendTo('#admin-menu > ul');
      });
      $('ul.tabs.secondary').appendTo('#admin-menu > ul > li.admin-menu-tab.active').removeClass('secondary');
    }
    // Collapse fieldsets on Modules page. For why multiple selectors see #111719.
    if (Drupal.settings.admin_menu.tweak_modules) {
      $('#system-modules fieldset:not(.collapsed), #system-modules-1 fieldset:not(.collapsed)').addClass('collapsed');
    }
  }

  // Hover emulation for IE 6.
  if ($.browser.msie && parseInt(jQuery.browser.version) == 6) {
    $('#admin-menu li').hover(function() {
      $(this).addClass('iehover');
    }, function() {
      $(this).removeClass('iehover');
    });
  }

  // Delayed mouseout.
  $('#admin-menu li').hover(function() {
    // Stop the timer.
    clearTimeout(this.sfTimer);
    // Display child lists.
    $('> ul', this).css({left: 'auto', display: 'block'})
      // Immediately hide nephew lists.
      .parent().siblings('li').children('ul').css({left: '-999em', display: 'none'});
  }, function() {
    // Start the timer.
    var uls = $('> ul', this);
    this.sfTimer = setTimeout(function() {
      uls.css({left: '-999em', display: 'none'});
    }, 400);
  });
});
;
// $Id: tableheader.js,v 1.16.2.2 2009/03/30 12:48:09 goba Exp $

Drupal.tableHeaderDoScroll = function() {
  if (typeof(Drupal.tableHeaderOnScroll)=='function') {
    Drupal.tableHeaderOnScroll();
  }
};

Drupal.behaviors.tableHeader = function (context) {
  // This breaks in anything less than IE 7. Prevent it from running.
  if (jQuery.browser.msie && parseInt(jQuery.browser.version, 10) < 7) {
    return;
  }

  // Keep track of all cloned table headers.
  var headers = [];

  $('table.sticky-enabled thead:not(.tableHeader-processed)', context).each(function () {
    // Clone thead so it inherits original jQuery properties.
    var headerClone = $(this).clone(true).insertBefore(this.parentNode).wrap('<table class="sticky-header"></table>').parent().css({
      position: 'fixed',
      top: '0px'
    });

    headerClone = $(headerClone)[0];
    headers.push(headerClone);

    // Store parent table.
    var table = $(this).parent('table')[0];
    headerClone.table = table;
    // Finish initialzing header positioning.
    tracker(headerClone);

    $(table).addClass('sticky-table');
    $(this).addClass('tableHeader-processed');
  });

  // Define the anchor holding var.
  var prevAnchor = '';

  // Track positioning and visibility.
  function tracker(e) {
    // Save positioning data.
    var viewHeight = document.documentElement.scrollHeight || document.body.scrollHeight;
    if (e.viewHeight != viewHeight) {
      e.viewHeight = viewHeight;
      e.vPosition = $(e.table).offset().top - 4;
      e.hPosition = $(e.table).offset().left;
      e.vLength = e.table.clientHeight - 100;
      // Resize header and its cell widths.
      var parentCell = $('th', e.table);
      $('th', e).each(function(index) {
        var cellWidth = parentCell.eq(index).css('width');
        // Exception for IE7.
        if (cellWidth == 'auto') {
          cellWidth = parentCell.get(index).clientWidth +'px';
        }
        $(this).css('width', cellWidth);
      });
      $(e).css('width', $(e.table).css('width'));
    }

    // Track horizontal positioning relative to the viewport and set visibility.
    var hScroll = document.documentElement.scrollLeft || document.body.scrollLeft;
    var vOffset = (document.documentElement.scrollTop || document.body.scrollTop) - e.vPosition;
    var visState = (vOffset > 0 && vOffset < e.vLength) ? 'visible' : 'hidden';
    $(e).css({left: -hScroll + e.hPosition +'px', visibility: visState});

    // Check the previous anchor to see if we need to scroll to make room for the header.
    // Get the height of the header table and scroll up that amount.
    if (prevAnchor != location.hash) {
      if (location.hash != '') {
        var offset = $('td' + location.hash).offset();
        if (offset) {
          var top = offset.top;
          var scrollLocation = top - $(e).height();
          $('body, html').scrollTop(scrollLocation);
        }
      }
      prevAnchor = location.hash;
    }
  }

  // Only attach to scrollbars once, even if Drupal.attachBehaviors is called
  //  multiple times.
  if (!$('body').hasClass('tableHeader-processed')) {
    $('body').addClass('tableHeader-processed');
    $(window).scroll(Drupal.tableHeaderDoScroll);
    $(document.documentElement).scroll(Drupal.tableHeaderDoScroll);
  }

  // Track scrolling.
  Drupal.tableHeaderOnScroll = function() {
    $(headers).each(function () {
      tracker(this);
    });
  };

  // Track resizing.
  var time = null;
  var resize = function () {
    // Ensure minimum time between adjustments.
    if (time) {
      return;
    }
    time = setTimeout(function () {
      $('table.sticky-header').each(function () {
        // Force cell width calculation.
        this.viewHeight = 0;
        tracker(this);
      });
      // Reset timer
      time = null;
    }, 250);
  };
  $(window).resize(resize);
};
;
