/*!
 * jQuery UI 1.8.11
 *
 * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 *
 * http://docs.jquery.com/UI
 */
(function(c,j){function k(a){return!c(a).parents().andSelf().filter(function(){return c.curCSS(this,"visibility")==="hidden"||c.expr.filters.hidden(this)}).length}c.ui=c.ui||{};if(!c.ui.version){c.extend(c.ui,{version:"1.8.11",keyCode:{ALT:18,BACKSPACE:8,CAPS_LOCK:20,COMMA:188,COMMAND:91,COMMAND_LEFT:91,COMMAND_RIGHT:93,CONTROL:17,DELETE:46,DOWN:40,END:35,ENTER:13,ESCAPE:27,HOME:36,INSERT:45,LEFT:37,MENU:93,NUMPAD_ADD:107,NUMPAD_DECIMAL:110,NUMPAD_DIVIDE:111,NUMPAD_ENTER:108,NUMPAD_MULTIPLY:106,
NUMPAD_SUBTRACT:109,PAGE_DOWN:34,PAGE_UP:33,PERIOD:190,RIGHT:39,SHIFT:16,SPACE:32,TAB:9,UP:38,WINDOWS:91}});c.fn.extend({_focus:c.fn.focus,focus:function(a,b){return typeof a==="number"?this.each(function(){var d=this;setTimeout(function(){c(d).focus();b&&b.call(d)},a)}):this._focus.apply(this,arguments)},scrollParent:function(){var a;a=c.browser.msie&&/(static|relative)/.test(this.css("position"))||/absolute/.test(this.css("position"))?this.parents().filter(function(){return/(relative|absolute|fixed)/.test(c.curCSS(this,
"position",1))&&/(auto|scroll)/.test(c.curCSS(this,"overflow",1)+c.curCSS(this,"overflow-y",1)+c.curCSS(this,"overflow-x",1))}).eq(0):this.parents().filter(function(){return/(auto|scroll)/.test(c.curCSS(this,"overflow",1)+c.curCSS(this,"overflow-y",1)+c.curCSS(this,"overflow-x",1))}).eq(0);return/fixed/.test(this.css("position"))||!a.length?c(document):a},zIndex:function(a){if(a!==j)return this.css("zIndex",a);if(this.length){a=c(this[0]);for(var b;a.length&&a[0]!==document;){b=a.css("position");
if(b==="absolute"||b==="relative"||b==="fixed"){b=parseInt(a.css("zIndex"),10);if(!isNaN(b)&&b!==0)return b}a=a.parent()}}return 0},disableSelection:function(){return this.bind((c.support.selectstart?"selectstart":"mousedown")+".ui-disableSelection",function(a){a.preventDefault()})},enableSelection:function(){return this.unbind(".ui-disableSelection")}});c.each(["Width","Height"],function(a,b){function d(f,g,l,m){c.each(e,function(){g-=parseFloat(c.curCSS(f,"padding"+this,true))||0;if(l)g-=parseFloat(c.curCSS(f,
"border"+this+"Width",true))||0;if(m)g-=parseFloat(c.curCSS(f,"margin"+this,true))||0});return g}var e=b==="Width"?["Left","Right"]:["Top","Bottom"],h=b.toLowerCase(),i={innerWidth:c.fn.innerWidth,innerHeight:c.fn.innerHeight,outerWidth:c.fn.outerWidth,outerHeight:c.fn.outerHeight};c.fn["inner"+b]=function(f){if(f===j)return i["inner"+b].call(this);return this.each(function(){c(this).css(h,d(this,f)+"px")})};c.fn["outer"+b]=function(f,g){if(typeof f!=="number")return i["outer"+b].call(this,f);return this.each(function(){c(this).css(h,
d(this,f,true,g)+"px")})}});c.extend(c.expr[":"],{data:function(a,b,d){return!!c.data(a,d[3])},focusable:function(a){var b=a.nodeName.toLowerCase(),d=c.attr(a,"tabindex");if("area"===b){b=a.parentNode;d=b.name;if(!a.href||!d||b.nodeName.toLowerCase()!=="map")return false;a=c("img[usemap=#"+d+"]")[0];return!!a&&k(a)}return(/input|select|textarea|button|object/.test(b)?!a.disabled:"a"==b?a.href||!isNaN(d):!isNaN(d))&&k(a)},tabbable:function(a){var b=c.attr(a,"tabindex");return(isNaN(b)||b>=0)&&c(a).is(":focusable")}});
c(function(){var a=document.body,b=a.appendChild(b=document.createElement("div"));c.extend(b.style,{minHeight:"100px",height:"auto",padding:0,borderWidth:0});c.support.minHeight=b.offsetHeight===100;c.support.selectstart="onselectstart"in b;a.removeChild(b).style.display="none"});c.extend(c.ui,{plugin:{add:function(a,b,d){a=c.ui[a].prototype;for(var e in d){a.plugins[e]=a.plugins[e]||[];a.plugins[e].push([b,d[e]])}},call:function(a,b,d){if((b=a.plugins[b])&&a.element[0].parentNode)for(var e=0;e<b.length;e++)a.options[b[e][0]]&&
b[e][1].apply(a.element,d)}},contains:function(a,b){return document.compareDocumentPosition?a.compareDocumentPosition(b)&16:a!==b&&a.contains(b)},hasScroll:function(a,b){if(c(a).css("overflow")==="hidden")return false;b=b&&b==="left"?"scrollLeft":"scrollTop";var d=false;if(a[b]>0)return true;a[b]=1;d=a[b]>0;a[b]=0;return d},isOverAxis:function(a,b,d){return a>b&&a<b+d},isOver:function(a,b,d,e,h,i){return c.ui.isOverAxis(a,d,h)&&c.ui.isOverAxis(b,e,i)}})}})(jQuery);
;

/*
 * jQuery BBQ: Back Button & Query Library - v1.2.1 - 2/17/2010
 * http://benalman.com/projects/jquery-bbq-plugin/
 *
 * Copyright (c) 2010 "Cowboy" Ben Alman
 * Dual licensed under the MIT and GPL licenses.
 * http://benalman.com/about/license/
 */
(function($,p){var i,m=Array.prototype.slice,r=decodeURIComponent,a=$.param,c,l,v,b=$.bbq=$.bbq||{},q,u,j,e=$.event.special,d="hashchange",A="querystring",D="fragment",y="elemUrlAttr",g="location",k="href",t="src",x=/^.*\?|#.*$/g,w=/^.*\#/,h,C={};function E(F){return typeof F==="string"}function B(G){var F=m.call(arguments,1);return function(){return G.apply(this,F.concat(m.call(arguments)))}}function n(F){return F.replace(/^[^#]*#?(.*)$/,"$1")}function o(F){return F.replace(/(?:^[^?#]*\?([^#]*).*$)?.*/,"$1")}function f(H,M,F,I,G){var O,L,K,N,J;if(I!==i){K=F.match(H?/^([^#]*)\#?(.*)$/:/^([^#?]*)\??([^#]*)(#?.*)/);J=K[3]||"";if(G===2&&E(I)){L=I.replace(H?w:x,"")}else{N=l(K[2]);I=E(I)?l[H?D:A](I):I;L=G===2?I:G===1?$.extend({},I,N):$.extend({},N,I);L=a(L);if(H){L=L.replace(h,r)}}O=K[1]+(H?"#":L||!K[1]?"?":"")+L+J}else{O=M(F!==i?F:p[g][k])}return O}a[A]=B(f,0,o);a[D]=c=B(f,1,n);c.noEscape=function(G){G=G||"";var F=$.map(G.split(""),encodeURIComponent);h=new RegExp(F.join("|"),"g")};c.noEscape(",/");$.deparam=l=function(I,F){var H={},G={"true":!0,"false":!1,"null":null};$.each(I.replace(/\+/g," ").split("&"),function(L,Q){var K=Q.split("="),P=r(K[0]),J,O=H,M=0,R=P.split("]["),N=R.length-1;if(/\[/.test(R[0])&&/\]$/.test(R[N])){R[N]=R[N].replace(/\]$/,"");R=R.shift().split("[").concat(R);N=R.length-1}else{N=0}if(K.length===2){J=r(K[1]);if(F){J=J&&!isNaN(J)?+J:J==="undefined"?i:G[J]!==i?G[J]:J}if(N){for(;M<=N;M++){P=R[M]===""?O.length:R[M];O=O[P]=M<N?O[P]||(R[M+1]&&isNaN(R[M+1])?{}:[]):J}}else{if($.isArray(H[P])){H[P].push(J)}else{if(H[P]!==i){H[P]=[H[P],J]}else{H[P]=J}}}}else{if(P){H[P]=F?i:""}}});return H};function z(H,F,G){if(F===i||typeof F==="boolean"){G=F;F=a[H?D:A]()}else{F=E(F)?F.replace(H?w:x,""):F}return l(F,G)}l[A]=B(z,0);l[D]=v=B(z,1);$[y]||($[y]=function(F){return $.extend(C,F)})({a:k,base:k,iframe:t,img:t,input:t,form:"action",link:k,script:t});j=$[y];function s(I,G,H,F){if(!E(H)&&typeof H!=="object"){F=H;H=G;G=i}return this.each(function(){var L=$(this),J=G||j()[(this.nodeName||"").toLowerCase()]||"",K=J&&L.attr(J)||"";L.attr(J,a[I](K,H,F))})}$.fn[A]=B(s,A);$.fn[D]=B(s,D);b.pushState=q=function(I,F){if(E(I)&&/^#/.test(I)&&F===i){F=2}var H=I!==i,G=c(p[g][k],H?I:{},H?F:2);p[g][k]=G+(/#/.test(G)?"":"#")};b.getState=u=function(F,G){return F===i||typeof F==="boolean"?v(F):v(G)[F]};b.removeState=function(F){var G={};if(F!==i){G=u();$.each($.isArray(F)?F:arguments,function(I,H){delete G[H]})}q(G,2)};e[d]=$.extend(e[d],{add:function(F){var H;function G(J){var I=J[D]=c();J.getState=function(K,L){return K===i||typeof K==="boolean"?l(I,K):l(I,L)[K]};H.apply(this,arguments)}if($.isFunction(F)){H=F;return G}else{H=F.handler;F.handler=G}}})})(jQuery,this);
/*
 * jQuery hashchange event - v1.2 - 2/11/2010
 * http://benalman.com/projects/jquery-hashchange-plugin/
 *
 * Copyright (c) 2010 "Cowboy" Ben Alman
 * Dual licensed under the MIT and GPL licenses.
 * http://benalman.com/about/license/
 */
(function($,i,b){var j,k=$.event.special,c="location",d="hashchange",l="href",f=$.browser,g=document.documentMode,h=f.msie&&(g===b||g<8),e="on"+d in i&&!h;function a(m){m=m||i[c][l];return m.replace(/^[^#]*#?(.*)$/,"$1")}$[d+"Delay"]=100;k[d]=$.extend(k[d],{setup:function(){if(e){return false}$(j.start)},teardown:function(){if(e){return false}$(j.stop)}});j=(function(){var m={},r,n,o,q;function p(){o=q=function(s){return s};if(h){n=$('<iframe src="javascript:0"/>').hide().insertAfter("body")[0].contentWindow;q=function(){return a(n.document[c][l])};o=function(u,s){if(u!==s){var t=n.document;t.open().close();t[c].hash="#"+u}};o(a())}}m.start=function(){if(r){return}var t=a();o||p();(function s(){var v=a(),u=q(t);if(v!==t){o(t=v,u);$(i).trigger(d)}else{if(u!==t){i[c][l]=i[c][l].replace(/#.*/,"")+"#"+u}}r=setTimeout(s,$[d+"Delay"])})()};m.stop=function(){if(!n){r&&clearTimeout(r);r=0}};return m})()})(jQuery,this);
;

(function ($) {

/**
 * Open the overlay, or load content into it, when an admin link is clicked.
 */
Drupal.behaviors.overlayParent = {
  attach: function (context, settings) {
    if (Drupal.overlay.isOpen) {
      Drupal.overlay.makeDocumentUntabbable(context);
    }

    if (this.processed) {
      return;
    }
    this.processed = true;

    $(window)
      // When the hash (URL fragment) changes, open the overlay if needed.
      .bind('hashchange.drupal-overlay', $.proxy(Drupal.overlay, 'eventhandlerOperateByURLFragment'))
      // Trigger the hashchange handler once, after the page is loaded, so that
      // permalinks open the overlay.
      .triggerHandler('hashchange.drupal-overlay');

    $(document)
      // Instead of binding a click event handler to every link we bind one to
      // the document and only handle events that bubble up. This allows other
      // scripts to bind their own handlers to links and also to prevent
      // overlay's handling.
      .bind('click.drupal-overlay mouseup.drupal-overlay', $.proxy(Drupal.overlay, 'eventhandlerOverrideLink'));
  }
};

/**
 * Overlay object for parent windows.
 *
 * Events
 * Overlay triggers a number of events that can be used by other scripts.
 * - drupalOverlayOpen: This event is triggered when the overlay is opened.
 * - drupalOverlayBeforeClose: This event is triggered when the overlay attempts
 *   to close. If an event handler returns false, the close will be prevented.
 * - drupalOverlayClose: This event is triggered when the overlay is closed.
 * - drupalOverlayBeforeLoad: This event is triggered right before a new URL
 *   is loaded into the overlay.
 * - drupalOverlayReady: This event is triggered when the DOM of the overlay
 *   child document is fully loaded.
 * - drupalOverlayLoad: This event is triggered when the overlay is finished
 *   loading.
 * - drupalOverlayResize: This event is triggered when the overlay is being
 *   resized to match the parent window.
 */
Drupal.overlay = Drupal.overlay || {
  isOpen: false,
  isOpening: false,
  isClosing: false,
  isLoading: false
};

Drupal.overlay.prototype = {};

/**
 * Open the overlay.
 *
 * @param url
 *   The URL of the page to open in the overlay.
 *
 * @return
 *   TRUE if the overlay was opened, FALSE otherwise.
 */
Drupal.overlay.open = function (url) {
  // Just one overlay is allowed.
  if (this.isOpen || this.isOpening) {
    return this.load(url);
  }
  this.isOpening = true;
  // Store the original document title.
  this.originalTitle = document.title;

  // Create the dialog and related DOM elements.
  this.create();

  this.isOpening = false;
  this.isOpen = true;
  $(document.documentElement).addClass('overlay-open');
  this.makeDocumentUntabbable();

  // Allow other scripts to respond to this event.
  $(document).trigger('drupalOverlayOpen');

  return this.load(url);
};

/**
 * Create the underlying markup and behaviors for the overlay.
 */
Drupal.overlay.create = function () {
  this.$container = $(Drupal.theme('overlayContainer'))
    .appendTo(document.body);

  // Overlay uses transparent iframes that cover the full parent window.
  // When the overlay is open the scrollbar of the parent window is hidden.
  // Because some browsers show a white iframe background for a short moment
  // while loading a page into an iframe, overlay uses two iframes. By loading
  // the page in a hidden (inactive) iframe the user doesn't see the white
  // background. When the page is loaded the active and inactive iframes
  // are switched.
  this.activeFrame = this.$iframeA = $(Drupal.theme('overlayElement'))
    .appendTo(this.$container);

  this.inactiveFrame = this.$iframeB = $(Drupal.theme('overlayElement'))
    .appendTo(this.$container);

  this.$iframeA.bind('load.drupal-overlay', { self: this.$iframeA[0], sibling: this.$iframeB }, $.proxy(this, 'loadChild'));
  this.$iframeB.bind('load.drupal-overlay', { self: this.$iframeB[0], sibling: this.$iframeA }, $.proxy(this, 'loadChild'));

  // Add a second class "drupal-overlay-open" to indicate these event handlers
  // should only be bound when the overlay is open.
  var eventClass = '.drupal-overlay.drupal-overlay-open';
  $(window)
    .bind('resize' + eventClass, $.proxy(this, 'eventhandlerOuterResize'));
  $(document)
    .bind('drupalOverlayLoad' + eventClass, $.proxy(this, 'eventhandlerOuterResize'))
    .bind('drupalOverlayReady' + eventClass +
          ' drupalOverlayClose' + eventClass, $.proxy(this, 'eventhandlerSyncURLFragment'))
    .bind('drupalOverlayClose' + eventClass, $.proxy(this, 'eventhandlerRefreshPage'))
    .bind('drupalOverlayBeforeClose' + eventClass +
          ' drupalOverlayBeforeLoad' + eventClass +
          ' drupalOverlayResize' + eventClass, $.proxy(this, 'eventhandlerDispatchEvent'));

  if ($('.overlay-displace-top, .overlay-displace-bottom').length) {
    $(document)
      .bind('drupalOverlayResize' + eventClass, $.proxy(this, 'eventhandlerAlterDisplacedElements'))
      .bind('drupalOverlayClose' + eventClass, $.proxy(this, 'eventhandlerRestoreDisplacedElements'));
  }
};

/**
 * Load the given URL into the overlay iframe.
 *
 * Use this method to change the URL being loaded in the overlay if it is
 * already open.
 *
 * @return
 *   TRUE if URL is loaded into the overlay, FALSE otherwise.
 */
Drupal.overlay.load = function (url) {
  if (!this.isOpen) {
    return false;
  }

  // Allow other scripts to respond to this event.
  $(document).trigger('drupalOverlayBeforeLoad');

  $(document.documentElement).addClass('overlay-loading');

  // The contentDocument property is not supported in IE until IE8.
  var iframeDocument = this.inactiveFrame[0].contentDocument || this.inactiveFrame[0].contentWindow.document;

  // location.replace doesn't create a history entry. location.href does.
  // In this case, we want location.replace, as we're creating the history
  // entry using URL fragments.
  iframeDocument.location.replace(url);

  return true;
};

/**
 * Close the overlay and remove markup related to it from the document.
 *
 * @return
 *   TRUE if the overlay was closed, FALSE otherwise.
 */
Drupal.overlay.close = function () {
  // Prevent double execution when close is requested more than once.
  if (!this.isOpen || this.isClosing) {
    return false;
  }

  // Allow other scripts to respond to this event.
  var event = $.Event('drupalOverlayBeforeClose');
  $(document).trigger(event);
  // If a handler returned false, the close will be prevented.
  if (event.isDefaultPrevented()) {
    return false;
  }

  this.isClosing = true;
  this.isOpen = false;
  $(document.documentElement).removeClass('overlay-open');
  // Restore the original document title.
  document.title = this.originalTitle;
  this.makeDocumentTabbable();

  // Allow other scripts to respond to this event.
  $(document).trigger('drupalOverlayClose');

  // When the iframe is still loading don't destroy it immediately but after
  // the content is loaded (see Drupal.overlay.loadChild).
  if (!this.isLoading) {
    this.destroy();
    this.isClosing = false;
  }
  return true;
};

/**
 * Destroy the overlay.
 */
Drupal.overlay.destroy = function () {
  $([document, window]).unbind('.drupal-overlay-open');
  this.$container.remove();

  this.$container = null;
  this.$iframeA = null;
  this.$iframeB = null;

  this.iframeWindow = null;
};

/**
 * Redirect the overlay parent window to the given URL.
 *
 * @param url
 *   Can be an absolute URL or a relative link to the domain root.
 */
Drupal.overlay.redirect = function (url) {
  // Create a native Link object, so we can use its object methods.
  var link = $(url.link(url)).get(0);

  // If the link is already open, force the hashchange event to simulate reload.
  if (window.location.href == link.href) {
    $(window).triggerHandler('hashchange.drupal-overlay');
  }

  window.location.href = link.href;
  return true;
};

/**
 * Bind the child window.
 *
 * Note that this function is fired earlier than Drupal.overlay.loadChild.
 */
Drupal.overlay.bindChild = function (iframeWindow, isClosing) {
  this.iframeWindow = iframeWindow;

  // We are done if the child window is closing.
  if (isClosing || this.isClosing || !this.isOpen) {
    return;
  }

  // Allow other scripts to respond to this event.
  $(document).trigger('drupalOverlayReady');
};

/**
 * Event handler: load event handler for the overlay iframe.
 *
 * @param event
 *   Event being triggered, with the following restrictions:
 *   - event.type: load
 *   - event.currentTarget: iframe
 */
Drupal.overlay.loadChild = function (event) {
  var iframe = event.data.self;
  var iframeDocument = iframe.contentDocument || iframe.contentWindow.document;
  var iframeWindow = iframeDocument.defaultView || iframeDocument.parentWindow;
  if (iframeWindow.location == 'about:blank') {
    return;
  }

  this.isLoading = false;
  $(document.documentElement).removeClass('overlay-loading');
  event.data.sibling.removeClass('overlay-active').attr({ 'tabindex': -1 });

  // Only continue when overlay is still open and not closing.
  if (this.isOpen && !this.isClosing) {
    // And child document is an actual overlayChild.
    if (iframeWindow.Drupal && iframeWindow.Drupal.overlayChild) {
      // Replace the document title with title of iframe.
      document.title = iframeWindow.document.title;

      this.activeFrame = $(iframe)
        .addClass('overlay-active')
        // Add a title attribute to the iframe for accessibility.
        .attr('title', Drupal.t('@title dialog', { '@title': iframeWindow.jQuery('#overlay-title').text() })).removeAttr('tabindex');
      this.inactiveFrame = event.data.sibling;

      // Load an empty document into the inactive iframe.
      (this.inactiveFrame[0].contentDocument || this.inactiveFrame[0].contentWindow.document).location.replace('about:blank');

      // Move the focus to just before the "skip to main content" link inside
      // the overlay.
      this.activeFrame.focus();
      var skipLink = iframeWindow.jQuery('a:first');
      Drupal.overlay.setFocusBefore(skipLink, iframeWindow.document);

      // Allow other scripts to respond to this event.
      $(document).trigger('drupalOverlayLoad');
    }
    else {
      window.location = iframeWindow.location.href.replace(/([?&]?)render=overlay&?/g, '$1').replace(/\?$/, '');
    }
  }
  else {
    this.destroy();
  }
};

/**
 * Creates a placeholder element to receive document focus.
 *
 * Setting the document focus to a link will make it visible, even if it's a
 * "skip to main content" link that should normally be visible only when the
 * user tabs to it. This function can be used to set the document focus to
 * just before such an invisible link.
 *
 * @param $element
 *   The jQuery element that should receive focus on the next tab press.
 * @param document
 *   The iframe window element to which the placeholder should be added. The
 *   placeholder element has to be created inside the same iframe as the element
 *   it precedes, to keep IE happy. (http://bugs.jquery.com/ticket/4059)
 */
Drupal.overlay.setFocusBefore = function ($element, document) {
  // Create an anchor inside the placeholder document.
  var placeholder = document.createElement('a');
  var $placeholder = $(placeholder).addClass('element-invisible').attr('href', '#');
  // Put the placeholder where it belongs, and set the document focus to it.
  $placeholder.insertBefore($element);
  $placeholder.focus();
  // Make the placeholder disappear as soon as it loses focus, so that it
  // doesn't appear in the tab order again.
  $placeholder.one('blur', function () {
    $(this).remove();
  });
}

/**
 * Check if the given link is in the administrative section of the site.
 *
 * @param url
 *   The url to be tested.
 *
 * @return boolean
 *   TRUE if the URL represents an administrative link, FALSE otherwise.
 */
Drupal.overlay.isAdminLink = function (url) {
  if (Drupal.overlay.isExternalLink(url)) {
    return false;
  }

  var path = this.getPath(url);

  // Turn the list of administrative paths into a regular expression.
  if (!this.adminPathRegExp) {
    var regExpPrefix = '^' + Drupal.settings.pathPrefix + '(';
    var adminPaths = regExpPrefix + Drupal.settings.overlay.paths.admin.replace(/\s+/g, ')$|' + regExpPrefix) + ')$';
    var nonAdminPaths = regExpPrefix + Drupal.settings.overlay.paths.non_admin.replace(/\s+/g, ')$|'+ regExpPrefix) + ')$';
    adminPaths = adminPaths.replace(/\*/g, '.*');
    nonAdminPaths = nonAdminPaths.replace(/\*/g, '.*');
    this.adminPathRegExp = new RegExp(adminPaths);
    this.nonAdminPathRegExp = new RegExp(nonAdminPaths);
  }

  return this.adminPathRegExp.exec(path) && !this.nonAdminPathRegExp.exec(path);
};

/**
 * Determine whether a link is external to the site.
 *
 * @param url
 *   The url to be tested.
 *
 * @return boolean
 *   TRUE if the URL is external to the site, FALSE otherwise.
 */
Drupal.overlay.isExternalLink = function (url) {
  var re = RegExp('^((f|ht)tps?:)?//(?!' + window.location.host + ')');
  return re.test(url);
};

/**
 * Event handler: resizes overlay according to the size of the parent window.
 *
 * @param event
 *   Event being triggered, with the following restrictions:
 *   - event.type: any
 *   - event.currentTarget: any
 */
Drupal.overlay.eventhandlerOuterResize = function (event) {
  // Proceed only if the overlay still exists.
  if (!(this.isOpen || this.isOpening) || this.isClosing || !this.iframeWindow) {
    return;
  }

  // IE6 uses position:absolute instead of position:fixed.
  if (typeof document.body.style.maxHeight != 'string') {
    this.activeFrame.height($(window).height());
  }

  // Allow other scripts to respond to this event.
  $(document).trigger('drupalOverlayResize');
};

/**
 * Event handler: resizes displaced elements so they won't overlap the scrollbar
 * of overlay's iframe.
 *
 * @param event
 *   Event being triggered, with the following restrictions:
 *   - event.type: any
 *   - event.currentTarget: any
 */
Drupal.overlay.eventhandlerAlterDisplacedElements = function (event) {
  // Proceed only if the overlay still exists.
  if (!(this.isOpen || this.isOpening) || this.isClosing || !this.iframeWindow) {
    return;
  }

  $(this.iframeWindow.document.body).css({
    marginTop: Drupal.overlay.getDisplacement('top'),
    marginBottom: Drupal.overlay.getDisplacement('bottom')
  })
  // IE7 isn't reflowing the document immediately.
  // @todo This might be fixed in a cleaner way.
  .addClass('overlay-trigger-reflow').removeClass('overlay-trigger-reflow');

  var documentHeight = this.iframeWindow.document.body.clientHeight;
  var documentWidth = this.iframeWindow.document.body.clientWidth;
  // IE6 doesn't support maxWidth, use width instead.
  var maxWidthName = (typeof document.body.style.maxWidth == 'string') ? 'maxWidth' : 'width';

  if (Drupal.overlay.leftSidedScrollbarOffset === undefined && $(document.documentElement).attr('dir') === 'rtl') {
    // We can't use element.clientLeft to detect whether scrollbars are placed
    // on the left side of the element when direction is set to "rtl" as most
    // browsers dont't support it correctly.
    // http://www.gtalbot.org/BugzillaSection/DocumentAllDHTMLproperties.html
    // There seems to be absolutely no way to detect whether the scrollbar
    // is on the left side in Opera; always expect scrollbar to be on the left.
    if ($.browser.opera) {
      Drupal.overlay.leftSidedScrollbarOffset = document.documentElement.clientWidth - this.iframeWindow.document.documentElement.clientWidth + this.iframeWindow.document.documentElement.clientLeft;
    }
    else if (this.iframeWindow.document.documentElement.clientLeft) {
      Drupal.overlay.leftSidedScrollbarOffset = this.iframeWindow.document.documentElement.clientLeft;
    }
    else {
      var el1 = $('<div style="direction: rtl; overflow: scroll;"></div>').appendTo(document.body);
      var el2 = $('<div></div>').appendTo(el1);
      Drupal.overlay.leftSidedScrollbarOffset = parseInt(el2[0].offsetLeft - el1[0].offsetLeft);
      el1.remove();
    }
  }

  // Consider any element that should be visible above the overlay (such as
  // a toolbar).
  $('.overlay-displace-top, .overlay-displace-bottom').each(function () {
    var data = $(this).data();
    var maxWidth = documentWidth;
    // In IE, Shadow filter makes element to overlap the scrollbar with 1px.
    if (this.filters && this.filters.length && this.filters.item('DXImageTransform.Microsoft.Shadow')) {
      maxWidth -= 1;
    }

    if (Drupal.overlay.leftSidedScrollbarOffset) {
      $(this).css('left', Drupal.overlay.leftSidedScrollbarOffset);
    }

    // Prevent displaced elements overlapping window's scrollbar.
    var currentMaxWidth = parseInt($(this).css(maxWidthName));
    if ((data.drupalOverlay && data.drupalOverlay.maxWidth) || isNaN(currentMaxWidth) || currentMaxWidth > maxWidth || currentMaxWidth <= 0) {
      $(this).css(maxWidthName, maxWidth);
      (data.drupalOverlay = data.drupalOverlay || {}).maxWidth = true;
    }

    // Use a more rigorous approach if the displaced element still overlaps
    // window's scrollbar; clip the element on the right.
    var offset = $(this).offset();
    var offsetRight = offset.left + $(this).outerWidth();
    if ((data.drupalOverlay && data.drupalOverlay.clip) || offsetRight > maxWidth) {
      if (Drupal.overlay.leftSidedScrollbarOffset) {
        $(this).css('clip', 'rect(auto, auto, ' + (documentHeight - offset.top) + 'px, ' + (Drupal.overlay.leftSidedScrollbarOffset + 2) + 'px)');
      }
      else {
        $(this).css('clip', 'rect(auto, ' + (maxWidth - offset.left) + 'px, ' + (documentHeight - offset.top) + 'px, auto)');
      }
      (data.drupalOverlay = data.drupalOverlay || {}).clip = true;
    }
  });
};

/**
 * Event handler: restores size of displaced elements as they were before
 * overlay was opened.
 *
 * @param event
 *   Event being triggered, with the following restrictions:
 *   - event.type: any
 *   - event.currentTarget: any
 */
Drupal.overlay.eventhandlerRestoreDisplacedElements = function (event) {
  var $displacedElements = $('.overlay-displace-top, .overlay-displace-bottom');
  try {
    $displacedElements.css({ maxWidth: '', clip: '' });
  }
  // IE bug that doesn't allow unsetting style.clip (http://dev.jquery.com/ticket/6512).
  catch (err) {
    $displacedElements.attr('style', function (index, attr) {
      return attr.replace(/clip\s*:\s*rect\([^)]+\);?/i, '');
    });
  }
};

/**
 * Event handler: overrides href of administrative links to be opened in
 * the overlay.
 *
 * This click event handler should be bound to any document (for example the
 * overlay iframe) of which you want links to open in the overlay.
 *
 * @param event
 *   Event being triggered, with the following restrictions:
 *   - event.type: click, mouseup
 *   - event.currentTarget: document
 *
 * @see Drupal.overlayChild.behaviors.addClickHandler
 */
Drupal.overlay.eventhandlerOverrideLink = function (event) {
  // In some browsers the click event isn't fired for right-clicks. Use the
  // mouseup event for right-clicks and the click event for everything else.
  if ((event.type == 'click' && event.button == 2) || (event.type == 'mouseup' && event.button != 2)) {
    return;
  }

  var $target = $(event.target);

  // Only continue if clicked target (or one of its parents) is a link.
  if (!$target.is('a')) {
    $target = $target.closest('a');
    if (!$target.length) {
      return;
    }
  }

  // Never open links in the overlay that contain the overlay-exclude class.
  if ($target.hasClass('overlay-exclude')) {
    return;
  }

  // Close the overlay when the link contains the overlay-close class.
  if ($target.hasClass('overlay-close')) {
    // Clearing the overlay URL fragment will close the overlay.
    $.bbq.removeState('overlay');
    return;
  }

  var target = $target[0];
  var href = target.href;
  // Only handle links that have an href attribute and use the http(s) protocol.
  if (href != undefined && href != '' && target.protocol.match(/^https?\:/)) {
    var anchor = href.replace(target.ownerDocument.location.href, '');
    // Skip anchor links.
    if (anchor.length == 0 || anchor.charAt(0) == '#') {
      return;
    }
    // Open admin links in the overlay.
    else if (this.isAdminLink(href)) {
      // If the link contains the overlay-restore class and the overlay-context
      // state is set, also update the parent window's location.
      var parentLocation = ($target.hasClass('overlay-restore') && typeof $.bbq.getState('overlay-context') == 'string')
        ? Drupal.settings.basePath + $.bbq.getState('overlay-context')
        : null;
      href = this.fragmentizeLink($target.get(0), parentLocation);
      // Only override default behavior when left-clicking and user is not
      // pressing the ALT, CTRL, META (Command key on the Macintosh keyboard)
      // or SHIFT key.
      if (event.button == 0 && !event.altKey && !event.ctrlKey && !event.metaKey && !event.shiftKey) {
        // Redirect to a fragmentized href. This will trigger a hashchange event.
        this.redirect(href);
        // Prevent default action and further propagation of the event.
        return false;
      }
      // Otherwise alter clicked link's href. This is being picked up by
      // the default action handler.
      else {
        $target
          // Restore link's href attribute on blur or next click.
          .one('blur mousedown', { target: target, href: target.href }, function (event) { $(event.data.target).attr('href', event.data.href); })
          .attr('href', href);
      }
    }
    // Non-admin links should close the overlay and open in the main window,
    // which is the default action for a link. We only need to handle them
    // if the overlay is open and the clicked link is inside the overlay iframe.
    else if (this.isOpen && target.ownerDocument === this.iframeWindow.document) {
      // Open external links in the immediate parent of the frame, unless the
      // link already has a different target.
      if (target.hostname != window.location.hostname) {
        if (!$target.attr('target')) {
          $target.attr('target', '_parent');
        }
      }
      else {
        // Add the overlay-context state to the link, so "overlay-restore" links
        // can restore the context.
        $target.attr('href', $.param.fragment(href, { 'overlay-context': this.getPath(window.location) + window.location.search }));

        // When the link has a destination query parameter and that destination
        // is an admin link we need to fragmentize it. This will make it reopen
        // in the overlay.
        var params = $.deparam.querystring(href);
        if (params.destination && this.isAdminLink(params.destination)) {
          var fragmentizedDestination = $.param.fragment(this.getPath(window.location), { overlay: params.destination });
          $target.attr('href', $.param.querystring(href, { destination: fragmentizedDestination }));
        }

        // Make the link open in the immediate parent of the frame.
        $target.attr('target', '_parent');
      }
    }
  }
};

/**
 * Event handler: opens or closes the overlay based on the current URL fragment.
 *
 * @param event
 *   Event being triggered, with the following restrictions:
 *   - event.type: hashchange
 *   - event.currentTarget: document
 */
Drupal.overlay.eventhandlerOperateByURLFragment = function (event) {
  // If we changed the hash to reflect an internal redirect in the overlay,
  // its location has already been changed, so don't do anything.
  if ($.data(window.location, window.location.href) === 'redirect') {
    $.data(window.location, window.location.href, null);
    return;
  }

  // Get the overlay URL from the current URL fragment.
  var state = $.bbq.getState('overlay');
  if (state) {
    // Append render variable, so the server side can choose the right
    // rendering and add child frame code to the page if needed.
    var url = $.param.querystring(Drupal.settings.basePath + state, { render: 'overlay' });

    this.open(url);
    this.resetActiveClass(this.getPath(Drupal.settings.basePath + state));
  }
  // If there is no overlay URL in the fragment and the overlay is (still)
  // open, close the overlay.
  else if (this.isOpen && !this.isClosing) {
    this.close();
    this.resetActiveClass(this.getPath(window.location));
  }
};

/**
 * Event handler: makes sure the internal overlay URL is reflected in the parent
 * URL fragment.
 *
 * Normally the parent URL fragment determines the overlay location. However, if
 * the overlay redirects internally, the parent doesn't get informed, and the
 * parent URL fragment will be out of date. This is a sanity check to make
 * sure we're in the right place.
 *
 * The parent URL fragment is also not updated automatically when overlay's
 * open, close or load functions are used directly (instead of through
 * eventhandlerOperateByURLFragment).
 *
 * @param event
 *   Event being triggered, with the following restrictions:
 *   - event.type: drupalOverlayReady, drupalOverlayClose
 *   - event.currentTarget: document
 */
Drupal.overlay.eventhandlerSyncURLFragment = function (event) {
  if (this.isOpen) {
    var expected = $.bbq.getState('overlay');
    // This is just a sanity check, so we're comparing paths, not query strings.
    if (this.getPath(Drupal.settings.basePath + expected) != this.getPath(this.iframeWindow.document.location)) {
      // There may have been a redirect inside the child overlay window that the
      // parent wasn't aware of. Update the parent URL fragment appropriately.
      var newLocation = Drupal.overlay.fragmentizeLink(this.iframeWindow.document.location);
      // Set a 'redirect' flag on the new location so the hashchange event handler
      // knows not to change the overlay's content.
      $.data(window.location, newLocation, 'redirect');
      // Use location.replace() so we don't create an extra history entry.
      window.location.replace(newLocation);
    }
  }
  else {
    $.bbq.removeState('overlay');
  }
};

/**
 * Event handler: if the child window suggested that the parent refresh on
 * close, force a page refresh.
 *
 * @param event
 *   Event being triggered, with the following restrictions:
 *   - event.type: drupalOverlayClose
 *   - event.currentTarget: document
 */
Drupal.overlay.eventhandlerRefreshPage = function (event) {
  if (Drupal.overlay.refreshPage) {
    window.location.reload(true);
  }
};

/**
 * Event handler: dispatches events to the overlay document.
 *
 * @param event
 *   Event being triggered, with the following restrictions:
 *   - event.type: any
 *   - event.currentTarget: any
 */
Drupal.overlay.eventhandlerDispatchEvent = function (event) {
  if (this.iframeWindow && this.iframeWindow.document) {
    this.iframeWindow.jQuery(this.iframeWindow.document).trigger(event);
  }
};

/**
 * Make a regular admin link into a URL that will trigger the overlay to open.
 *
 * @param link
 *   A JavaScript Link object (i.e. an <a> element).
 * @param parentLocation
 *   (optional) URL to override the parent window's location with.
 *
 * @return
 *   A URL that will trigger the overlay (in the form
 *   /node/1#overlay=admin/config).
 */
Drupal.overlay.fragmentizeLink = function (link, parentLocation) {
  // Don't operate on links that are already overlay-ready.
  var params = $.deparam.fragment(link.href);
  if (params.overlay) {
    return link.href;
  }

  // Determine the link's original destination. Set ignorePathFromQueryString to
  // true to prevent transforming this link into a clean URL while clean URLs
  // may be disabled.
  var path = this.getPath(link, true);
  // Preserve existing query and fragment parameters in the URL, except for
  // "render=overlay" which is re-added in Drupal.overlay.eventhandlerOperateByURLFragment.
  var destination = path + link.search.replace(/&?render=overlay/, '').replace(/\?$/, '') + link.hash;

  // Assemble and return the overlay-ready link.
  return $.param.fragment(parentLocation || window.location.href, { overlay: destination });
};

/**
 * Refresh any regions of the page that are displayed outside the overlay.
 *
 * @param data
 *   An array of objects with information on the page regions to be refreshed.
 *   For each object, the key is a CSS class identifying the region to be
 *   refreshed, and the value represents the section of the Drupal $page array
 *   corresponding to this region.
 */
Drupal.overlay.refreshRegions = function (data) {
  $.each(data, function () {
    var region_info = this;
    $.each(region_info, function (regionClass) {
      var regionName = region_info[regionClass];
      var regionSelector = '.' + regionClass;
      // Allow special behaviors to detach.
      Drupal.detachBehaviors($(regionSelector));
      $.get(Drupal.settings.basePath + Drupal.settings.overlay.ajaxCallback + '/' + regionName, function (newElement) {
        $(regionSelector).replaceWith($(newElement));
        Drupal.attachBehaviors($(regionSelector), Drupal.settings);
      });
    });
  });
};

/**
 * Reset the active class on links in displaced elements according to
 * given path.
 *
 * @param activePath
 *   Path to match links against.
 */
Drupal.overlay.resetActiveClass = function(activePath) {
  var self = this;
  var windowDomain = window.location.protocol + window.location.hostname;

  $('.overlay-displace-top, .overlay-displace-bottom')
  .find('a[href]')
  // Remove active class from all links in displaced elements.
  .removeClass('active')
  // Add active class to links that match activePath.
  .each(function () {
    var linkDomain = this.protocol + this.hostname;
    var linkPath = self.getPath(this);

    // A link matches if it is part of the active trail of activePath, except
    // for frontpage links.
    if (linkDomain == windowDomain && (activePath + '/').indexOf(linkPath + '/') === 0 && (linkPath !== '' || activePath === '')) {
      $(this).addClass('active');
    }
  });
};

/**
 * Helper function to get the (corrected) Drupal path of a link.
 *
 * @param link
 *   Link object or string to get the Drupal path from.
 * @param ignorePathFromQueryString
 *   Boolean whether to ignore path from query string if path appears empty.
 *
 * @return
 *   The Drupal path.
 */
Drupal.overlay.getPath = function (link, ignorePathFromQueryString) {
  if (typeof link == 'string') {
    // Create a native Link object, so we can use its object methods.
    link = $(link.link(link)).get(0);
  }

  var path = link.pathname;
  // Ensure a leading slash on the path, omitted in some browsers.
  if (path.charAt(0) != '/') {
    path = '/' + path;
  }
  path = path.replace(new RegExp(Drupal.settings.basePath + '(?:index.php)?'), '');
  if (path == '' && !ignorePathFromQueryString) {
    // If the path appears empty, it might mean the path is represented in the
    // query string (clean URLs are not used).
    var match = new RegExp('([?&])q=(.+)([&#]|$)').exec(link.search);
    if (match && match.length == 4) {
      path = match[2];
    }
  }

  return path;
};

/**
 * Get the total displacement of given region.
 *
 * @param region
 *   Region name. Either "top" or "bottom".
 *
 * @return
 *   The total displacement of given region in pixels.
 */
Drupal.overlay.getDisplacement = function (region) {
  var displacement = 0;
  var lastDisplaced = $('.overlay-displace-' + region + ':last');
  if (lastDisplaced.length) {
    displacement = lastDisplaced.offset().top + lastDisplaced.outerHeight();

    // Remove height added by IE Shadow filter.
    if (lastDisplaced[0].filters && lastDisplaced[0].filters.length && lastDisplaced[0].filters.item('DXImageTransform.Microsoft.Shadow')) {
      displacement -= lastDisplaced[0].filters.item('DXImageTransform.Microsoft.Shadow').strength;
      displacement = Math.max(0, displacement);
    }
  }
  return displacement;
};

/**
 * Makes elements outside the overlay unreachable via the tab key.
 *
 * @param context
 *   The part of the DOM that should have its tabindexes changed. Defaults to
 *   the entire page.
 */
Drupal.overlay.makeDocumentUntabbable = function (context) {
  // Manipulating tabindexes for the entire document is unacceptably slow in IE6
  // and IE7, so in those browsers, the underlying page will still be reachable
  // via the tab key. However, we still make the links within the Disable
  // message unreachable, because the same message also exists within the
  // child document. The duplicate copy in the underlying document is only for
  // assisting screen-reader users navigating the document with reading commands
  // that follow markup order rather than tab order.
  if (jQuery.browser.msie && parseInt(jQuery.browser.version, 10) < 8) {
    $('#overlay-disable-message a', context).attr('tabindex', -1);
    return;
  }

  context = context || document.body;
  var $overlay, $tabbable, $hasTabindex;

  // Determine which elements on the page already have a tabindex.
  $hasTabindex = $('[tabindex] :not(.overlay-element)', context);
  // Record the tabindex for each element, so we can restore it later.
  $hasTabindex.each(Drupal.overlay._recordTabindex);
  // Add the tabbable elements from the current context to any that we might
  // have previously recorded.
  Drupal.overlay._hasTabindex = $hasTabindex.add(Drupal.overlay._hasTabindex);

  // Set tabindex to -1 on everything outside the overlay and toolbars, so that
  // the underlying page is unreachable.

  // By default, browsers make a, area, button, input, object, select, textarea,
  // and iframe elements reachable via the tab key.
  $tabbable = $('a, area, button, input, object, select, textarea, iframe');
  // If another element (like a div) has a tabindex, it's also tabbable.
  $tabbable = $tabbable.add($hasTabindex);
  // Leave links inside the overlay and toolbars alone.
  $overlay = $('.overlay-element, #overlay-container, .overlay-displace-top, .overlay-displace-bottom').find('*');
  $tabbable = $tabbable.not($overlay);
  // We now have a list of everything in the underlying document that could
  // possibly be reachable via the tab key. Make it all unreachable.
  $tabbable.attr('tabindex', -1);
};

/**
 * Restores the original tabindex value of a group of elements.
 *
 * @param context
 *   The part of the DOM that should have its tabindexes restored. Defaults to
 *   the entire page.
 */
Drupal.overlay.makeDocumentTabbable = function (context) {
  // Manipulating tabindexes is unacceptably slow in IE6 and IE7. In those
  // browsers, the underlying page was never made unreachable via tab, so
  // there is no work to be done here.
  if (jQuery.browser.msie && parseInt(jQuery.browser.version, 10) < 8) {
    return;
  }

  var $needsTabindex;
  context = context || document.body;

  // Make the underlying document tabbable again by removing all existing
  // tabindex attributes.
  var $tabindex = $('[tabindex]', context);
  if (jQuery.browser.msie && parseInt(jQuery.browser.version, 10) < 8) {
    // removeAttr('tabindex') is broken in IE6-7, but the DOM function
    // removeAttribute works.
    var i;
    var length = $tabindex.length;
    for (i = 0; i < length; i++) {
      $tabindex[i].removeAttribute('tabIndex');
    }
  }
  else {
    $tabindex.removeAttr('tabindex');
  }

  // Restore the tabindex attributes that existed before the overlay was opened.
  $needsTabindex = $(Drupal.overlay._hasTabindex, context);
  $needsTabindex.each(Drupal.overlay._restoreTabindex);
  Drupal.overlay._hasTabindex = Drupal.overlay._hasTabindex.not($needsTabindex);
};

/**
 * Record the tabindex for an element, using $.data.
 *
 * Meant to be used as a jQuery.fn.each callback.
 */
Drupal.overlay._recordTabindex = function () {
  var $element = $(this);
  var tabindex = $(this).attr('tabindex');
  $element.data('drupalOverlayOriginalTabIndex', tabindex);
}

/**
 * Restore an element's original tabindex.
 *
 * Meant to be used as a jQuery.fn.each callback.
 */
Drupal.overlay._restoreTabindex = function () {
  var $element = $(this);
  var tabindex = $element.data('drupalOverlayOriginalTabIndex');
  $element.attr('tabindex', tabindex);
};

/**
 * Theme function to create the overlay iframe element.
 */
Drupal.theme.prototype.overlayContainer = function () {
  return '<div id="overlay-container"><div class="overlay-modal-background"></div></div>';
};

/**
 * Theme function to create an overlay iframe element.
 */
Drupal.theme.prototype.overlayElement = function (url) {
  return '<iframe class="overlay-element" frameborder="0" scrolling="auto" allowtransparency="true"></iframe>';
};

})(jQuery);
;
/*jslint browser: true */ /*global jQuery: true */

/**
 * jQuery Cookie plugin
 *
 * Copyright (c) 2010 Klaus Hartl (stilbuero.de)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 */

// TODO JsDoc

/**
 * Create a cookie with the given key and value and other optional parameters.
 *
 * @example $.cookie('the_cookie', 'the_value');
 * @desc Set the value of a cookie.
 * @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true });
 * @desc Create a cookie with all available options.
 * @example $.cookie('the_cookie', 'the_value');
 * @desc Create a session cookie.
 * @example $.cookie('the_cookie', null);
 * @desc Delete a cookie by passing null as value. Keep in mind that you have to use the same path and domain
 *       used when the cookie was set.
 *
 * @param String key The key of the cookie.
 * @param String value The value of the cookie.
 * @param Object options An object literal containing key/value pairs to provide optional cookie attributes.
 * @option Number|Date expires Either an integer specifying the expiration date from now on in days or a Date object.
 *                             If a negative value is specified (e.g. a date in the past), the cookie will be deleted.
 *                             If set to null or omitted, the cookie will be a session cookie and will not be retained
 *                             when the the browser exits.
 * @option String path The value of the path atribute of the cookie (default: path of page that created the cookie).
 * @option String domain The value of the domain attribute of the cookie (default: domain of page that created the cookie).
 * @option Boolean secure If true, the secure attribute of the cookie will be set and the cookie transmission will
 *                        require a secure protocol (like HTTPS).
 * @type undefined
 *
 * @name $.cookie
 * @cat Plugins/Cookie
 * @author Klaus Hartl/klaus.hartl@stilbuero.de
 */

/**
 * Get the value of a cookie with the given key.
 *
 * @example $.cookie('the_cookie');
 * @desc Get the value of a cookie.
 *
 * @param String key The key of the cookie.
 * @return The value of the cookie.
 * @type String
 *
 * @name $.cookie
 * @cat Plugins/Cookie
 * @author Klaus Hartl/klaus.hartl@stilbuero.de
 */
jQuery.cookie = function (key, value, options) {

    // key and value given, set cookie...
    if (arguments.length > 1 && (value === null || typeof value !== "object")) {
        options = jQuery.extend({}, options);

        if (value === null) {
            options.expires = -1;
        }

        if (typeof options.expires === 'number') {
            var days = options.expires, t = options.expires = new Date();
            t.setDate(t.getDate() + days);
        }

        return (document.cookie = [
            encodeURIComponent(key), '=',
            options.raw ? String(value) : encodeURIComponent(String(value)),
            options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
            options.path ? '; path=' + options.path : '',
            options.domain ? '; domain=' + options.domain : '',
            options.secure ? '; secure' : ''
        ].join(''));
    }

    // key and possibly options given, get cookie...
    options = value || {};
    var result, decode = options.raw ? function (s) { return s; } : decodeURIComponent;
    return (result = new RegExp('(?:^|; )' + encodeURIComponent(key) + '=([^;]*)').exec(document.cookie)) ? decode(result[1]) : null;
};
;
/*
 * jQuery Form Plugin
 * version: 2.67 (12-MAR-2011)
 * @requires jQuery v1.3.2 or later
 *
 * Examples and documentation at: http://malsup.com/jquery/form/
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 */
(function(a){function b(){if(a.fn.ajaxSubmit.debug){var b="[jquery.form] "+Array.prototype.join.call(arguments,"");window.console&&window.console.log?window.console.log(b):window.opera&&window.opera.postError&&window.opera.postError(b)}}a.fn.ajaxSubmit=function(c){function r(){function t(){if(!j.aborted){var c=i.contentWindow?i.contentWindow.document:i.contentDocument?i.contentDocument:i.document;if(!c||c.location.href==e.iframeSrc)return;i.detachEvent?i.detachEvent("onload",t):i.removeEventListener("load",t,!1);var d=!0;try{if(m)throw"timeout";var f=e.dataType=="xml"||c.XMLDocument||a.isXMLDoc(c);b("isXml="+f);if(!f&&window.opera&&(c.body==null||c.body.innerHTML==""))if(--s){b("requeing onLoad callback, DOM not available"),setTimeout(t,250);return}j.responseText=c.body?c.body.innerHTML:c.documentElement?c.documentElement.innerHTML:null,j.responseXML=c.XMLDocument?c.XMLDocument:c,j.getResponseHeader=function(a){var b={"content-type":e.dataType};return b[a]};var g=/(json|script)/.test(e.dataType);if(g||e.textarea){var l=c.getElementsByTagName("textarea")[0];if(l)j.responseText=l.value;else if(g){var n=c.getElementsByTagName("pre")[0],o=c.getElementsByTagName("body")[0];n?j.responseText=n.textContent:o&&(j.responseText=o.innerHTML)}}else e.dataType=="xml"&&!j.responseXML&&j.responseText!=null&&(j.responseXML=u(j.responseText));q=w(j,e.dataType,e)}catch(p){b("error caught:",p),d=!1,j.error=p,e.error&&e.error.call(e.context,j,"error",p),k&&a.event.trigger("ajaxError",[j,e,p])}j.aborted&&(b("upload aborted"),d=!1),d&&(e.success&&e.success.call(e.context,q,"success",j),k&&a.event.trigger("ajaxSuccess",[j,e])),k&&a.event.trigger("ajaxComplete",[j,e]),k&&!--a.active&&a.event.trigger("ajaxStop"),e.complete&&e.complete.call(e.context,j,d?"success":"error"),setTimeout(function(){h.removeData("form-plugin-onload"),h.remove(),j.responseXML=null},100)}}function p(){var b=l.attr("target"),c=l.attr("action");d.setAttribute("target",f),d.getAttribute("method")!="POST"&&d.setAttribute("method","POST"),d.getAttribute("action")!=e.url&&d.setAttribute("action",e.url),e.skipEncodingOverride||l.attr({encoding:"multipart/form-data",enctype:"multipart/form-data"}),e.timeout&&setTimeout(function(){m=!0,t()},e.timeout);var g=[];try{if(e.extraData)for(var j in e.extraData)g.push(a('<input type="hidden" name="'+j+'" value="'+e.extraData[j]+'" />').appendTo(d)[0]);h.appendTo("body"),i.attachEvent?i.attachEvent("onload",t):i.addEventListener("load",t,!1),d.submit()}finally{d.setAttribute("action",c),b?d.setAttribute("target",b):l.removeAttr("target"),a(g).remove()}}var d=l[0];if(a(":input[name=submit],:input[id=submit]",d).length)alert('Error: Form elements must not have name or id of "submit".');else{var e=a.extend(!0,{},a.ajaxSettings,c);e.context=e.context||e;var f="jqFormIO"+(new Date).getTime(),g="_"+f,h=a('<iframe id="'+f+'" name="'+f+'" src="'+e.iframeSrc+'" />'),i=h[0];h.css({position:"absolute",top:"-1000px",left:"-1000px"});var j={aborted:0,responseText:null,responseXML:null,status:0,statusText:"n/a",getAllResponseHeaders:function(){},getResponseHeader:function(){},setRequestHeader:function(){},abort:function(){b("aborting upload...");var c="aborted";this.aborted=1,h.attr("src",e.iframeSrc),j.error=c,e.error&&e.error.call(e.context,j,"error",c),k&&a.event.trigger("ajaxError",[j,e,c]),e.complete&&e.complete.call(e.context,j,"error")}},k=e.global;k&&!(a.active++)&&a.event.trigger("ajaxStart"),k&&a.event.trigger("ajaxSend",[j,e]);if(e.beforeSend&&e.beforeSend.call(e.context,j,e)===!1){e.global&&a.active--;return}if(j.aborted)return;var m=0,n=d.clk;if(n){var o=n.name;o&&!n.disabled&&(e.extraData=e.extraData||{},e.extraData[o]=n.value,n.type=="image"&&(e.extraData[o+".x"]=d.clk_x,e.extraData[o+".y"]=d.clk_y))}e.forceSync?p():setTimeout(p,10);var q,r,s=50,u=a.parseXML||function(a,b){window.ActiveXObject?(b=new ActiveXObject("Microsoft.XMLDOM"),b.async="false",b.loadXML(a)):b=(new DOMParser).parseFromString(a,"text/xml");return b&&b.documentElement&&b.documentElement.nodeName!="parsererror"?b:null},v=a.parseJSON||function(a){return window.eval("("+a+")")},w=function(b,c,d){var e=b.getResponseHeader("content-type")||"",f=c==="xml"||!c&&e.indexOf("xml")>=0,g=f?b.responseXML:b.responseText;f&&g.documentElement.nodeName==="parsererror"&&(a.error&&a.error("parsererror")),d&&d.dataFilter&&(g=d.dataFilter(g,c)),typeof g==="string"&&(c==="json"||!c&&e.indexOf("json")>=0?g=v(g):(c==="script"||!c&&e.indexOf("javascript")>=0)&&a.globalEval(g));return g}}}if(!this.length){b("ajaxSubmit: skipping submit process - no element selected");return this}typeof c=="function"&&(c={success:c});var d=this.attr("action"),e=typeof d==="string"?a.trim(d):"";e&&(e=(e.match(/^([^#]+)/)||[])[1]),e=e||window.location.href||"",c=a.extend(!0,{url:e,type:this[0].getAttribute("method")||"GET",iframeSrc:/^https/i.test(window.location.href||"")?"javascript:false":"about:blank"},c);var f={};this.trigger("form-pre-serialize",[this,c,f]);if(f.veto){b("ajaxSubmit: submit vetoed via form-pre-serialize trigger");return this}if(c.beforeSerialize&&c.beforeSerialize(this,c)===!1){b("ajaxSubmit: submit aborted via beforeSerialize callback");return this}var g,h,i=this.formToArray(c.semantic);if(c.data){c.extraData=c.data;for(g in c.data)if(c.data[g]instanceof Array)for(var j in c.data[g])i.push({name:g,value:c.data[g][j]});else h=c.data[g],h=a.isFunction(h)?h():h,i.push({name:g,value:h})}if(c.beforeSubmit&&c.beforeSubmit(i,this,c)===!1){b("ajaxSubmit: submit aborted via beforeSubmit callback");return this}this.trigger("form-submit-validate",[i,this,c,f]);if(f.veto){b("ajaxSubmit: submit vetoed via form-submit-validate trigger");return this}var k=a.param(i);c.type.toUpperCase()=="GET"?(c.url+=(c.url.indexOf("?")>=0?"&":"?")+k,c.data=null):c.data=k;var l=this,m=[];c.resetForm&&m.push(function(){l.resetForm()}),c.clearForm&&m.push(function(){l.clearForm()});if(!c.dataType&&c.target){var n=c.success||function(){};m.push(function(b){var d=c.replaceTarget?"replaceWith":"html";a(c.target)[d](b).each(n,arguments)})}else c.success&&m.push(c.success);c.success=function(a,b,d){var e=c.context||c;for(var f=0,g=m.length;f<g;f++)m[f].apply(e,[a,b,d||l,l])};var o=a("input:file",this).length>0,p="multipart/form-data",q=l.attr("enctype")==p||l.attr("encoding")==p;c.iframe!==!1&&(o||c.iframe||q)?c.closeKeepAlive?a.get(c.closeKeepAlive,r):r():a.ajax(c),this.trigger("form-submit-notify",[this,c]);return this},a.fn.ajaxForm=function(c){if(this.length===0){var d={s:this.selector,c:this.context};if(!a.isReady&&d.s){b("DOM not ready, queuing ajaxForm"),a(function(){a(d.s,d.c).ajaxForm(c)});return this}b("terminating; zero elements found by selector"+(a.isReady?"":" (DOM not ready)"));return this}return this.ajaxFormUnbind().bind("submit.form-plugin",function(b){b.isDefaultPrevented()||(b.preventDefault(),a(this).ajaxSubmit(c))}).bind("click.form-plugin",function(b){var c=b.target,d=a(c);if(!d.is(":submit,input:image")){var e=d.closest(":submit");if(e.length==0)return;c=e[0]}var f=this;f.clk=c;if(c.type=="image")if(b.offsetX!=undefined)f.clk_x=b.offsetX,f.clk_y=b.offsetY;else if(typeof a.fn.offset=="function"){var g=d.offset();f.clk_x=b.pageX-g.left,f.clk_y=b.pageY-g.top}else f.clk_x=b.pageX-c.offsetLeft,f.clk_y=b.pageY-c.offsetTop;setTimeout(function(){f.clk=f.clk_x=f.clk_y=null},100)})},a.fn.ajaxFormUnbind=function(){return this.unbind("submit.form-plugin click.form-plugin")},a.fn.formToArray=function(b){var c=[];if(this.length===0)return c;var d=this[0],e=b?d.getElementsByTagName("*"):d.elements;if(!e)return c;var f,g,h,i,j,k,l;for(f=0,k=e.length;f<k;f++){j=e[f],h=j.name;if(!h)continue;if(b&&d.clk&&j.type=="image"){!j.disabled&&d.clk==j&&(c.push({name:h,value:a(j).val()}),c.push({name:h+".x",value:d.clk_x},{name:h+".y",value:d.clk_y}));continue}i=a.fieldValue(j,!0);if(i&&i.constructor==Array)for(g=0,l=i.length;g<l;g++)c.push({name:h,value:i[g]});else i!==null&&typeof i!="undefined"&&c.push({name:h,value:i})}if(!b&&d.clk){var m=a(d.clk),n=m[0];h=n.name,h&&!n.disabled&&n.type=="image"&&(c.push({name:h,value:m.val()}),c.push({name:h+".x",value:d.clk_x},{name:h+".y",value:d.clk_y}))}return c},a.fn.formSerialize=function(b){return a.param(this.formToArray(b))},a.fn.fieldSerialize=function(b){var c=[];this.each(function(){var d=this.name;if(d){var e=a.fieldValue(this,b);if(e&&e.constructor==Array)for(var f=0,g=e.length;f<g;f++)c.push({name:d,value:e[f]});else e!==null&&typeof e!="undefined"&&c.push({name:this.name,value:e})}});return a.param(c)},a.fn.fieldValue=function(b){for(var c=[],d=0,e=this.length;d<e;d++){var f=this[d],g=a.fieldValue(f,b);if(g===null||typeof g=="undefined"||g.constructor==Array&&!g.length)continue;g.constructor==Array?a.merge(c,g):c.push(g)}return c},a.fieldValue=function(b,c){var d=b.name,e=b.type,f=b.tagName.toLowerCase();c===undefined&&(c=!0);if(c&&(!d||b.disabled||e=="reset"||e=="button"||(e=="checkbox"||e=="radio")&&!b.checked||(e=="submit"||e=="image")&&b.form&&b.form.clk!=b||f=="select"&&b.selectedIndex==-1))return null;if(f=="select"){var g=b.selectedIndex;if(g<0)return null;var h=[],i=b.options,j=e=="select-one",k=j?g+1:i.length;for(var l=j?g:0;l<k;l++){var m=i[l];if(m.selected){var n=m.value;n||(n=m.attributes&&m.attributes.value&&!m.attributes.value.specified?m.text:m.value);if(j)return n;h.push(n)}}return h}return a(b).val()},a.fn.clearForm=function(){return this.each(function(){a("input,select,textarea",this).clearFields()})},a.fn.clearFields=a.fn.clearInputs=function(){return this.each(function(){var a=this.type,b=this.tagName.toLowerCase();a=="text"||a=="password"||b=="textarea"?this.value="":a=="checkbox"||a=="radio"?this.checked=!1:b=="select"&&(this.selectedIndex=-1)})},a.fn.resetForm=function(){return this.each(function(){(typeof this.reset=="function"||typeof this.reset=="object"&&!this.reset.nodeType)&&this.reset()})},a.fn.enable=function(a){a===undefined&&(a=!0);return this.each(function(){this.disabled=!a})},a.fn.selected=function(b){b===undefined&&(b=!0);return this.each(function(){var c=this.type;if(c=="checkbox"||c=="radio")this.checked=b;else if(this.tagName.toLowerCase()=="option"){var d=a(this).parent("select");b&&d[0]&&d[0].type=="select-one"&&d.find("option").selected(!1),this.selected=b}})}})(jQuery);
(function ($) {

/**
 * Provides Ajax page updating via jQuery $.ajax (Asynchronous JavaScript and XML).
 *
 * Ajax is a method of making a request via JavaScript while viewing an HTML
 * page. The request returns an array of commands encoded in JSON, which is
 * then executed to make any changes that are necessary to the page.
 *
 * Drupal uses this file to enhance form elements with #ajax['path'] and
 * #ajax['wrapper'] properties. If set, this file will automatically be included
 * to provide Ajax capabilities.
 */

Drupal.ajax = Drupal.ajax || {};

/**
 * Attaches the Ajax behavior to each Ajax form element.
 */
Drupal.behaviors.AJAX = {
  attach: function (context, settings) {
    // Load all Ajax behaviors specified in the settings.
    for (var base in settings.ajax) {
      if (!$('#' + base + '.ajax-processed').length) {
        var element_settings = settings.ajax[base];

        if (typeof element_settings.selector == 'undefined') {
          element_settings.selector = '#' + base;
        }
        $(element_settings.selector).each(function () {
          element_settings.element = this;
          Drupal.ajax[base] = new Drupal.ajax(base, this, element_settings);
        });

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

    // Bind Ajax behaviors to all items showing the class.
    $('.use-ajax:not(.ajax-processed)').addClass('ajax-processed').each(function () {
      var element_settings = {};
      // Clicked links look better with the throbber than the progress bar.
      element_settings.progress = { 'type': 'throbber' };

      // For anchor tags, these will go to the target of the anchor rather
      // than the usual location.
      if ($(this).attr('href')) {
        element_settings.url = $(this).attr('href');
        element_settings.event = 'click';
      }
      var base = $(this).attr('id');
      Drupal.ajax[base] = new Drupal.ajax(base, this, element_settings);
    });

    // This class means to submit the form to the action using Ajax.
    $('.use-ajax-submit:not(.ajax-processed)').addClass('ajax-processed').each(function () {
      var element_settings = {};

      // Ajax submits specified in this manner automatically submit to the
      // normal form action.
      element_settings.url = $(this.form).attr('action');
      // Form submit button clicks need to tell the form what was clicked so
      // it gets passed in the POST request.
      element_settings.setClick = true;
      // Form buttons use the 'click' event rather than mousedown.
      element_settings.event = 'click';
      // Clicked form buttons look better with the throbber than the progress bar.
      element_settings.progress = { 'type': 'throbber' };

      var base = $(this).attr('id');
      Drupal.ajax[base] = new Drupal.ajax(base, this, element_settings);
    });
  }
};

/**
 * Ajax object.
 *
 * All Ajax objects on a page are accessible through the global Drupal.ajax
 * object and are keyed by the submit button's ID. You can access them from
 * your module's JavaScript file to override properties or functions.
 *
 * For example, if your Ajax enabled button has the ID 'edit-submit', you can
 * redefine the function that is called to insert the new content like this
 * (inside a Drupal.behaviors attach block):
 * @code
 *    Drupal.behaviors.myCustomAJAXStuff = {
 *      attach: function (context, settings) {
 *        Drupal.ajax['edit-submit'].commands.insert = function (ajax, response, status) {
 *          new_content = $(response.data);
 *          $('#my-wrapper').append(new_content);
 *          alert('New content was appended to #my-wrapper');
 *        }
 *      }
 *    };
 * @endcode
 */
Drupal.ajax = function (base, element, element_settings) {
  var defaults = {
    url: 'system/ajax',
    event: 'mousedown',
    keypress: true,
    selector: '#' + base,
    effect: 'none',
    speed: 'none',
    method: 'replaceWith',
    progress: {
      type: 'throbber',
      message: Drupal.t('Please wait...')
    },
    submit: {
      'js': true
    }
  };

  $.extend(this, defaults, element_settings);

  this.element = element;
  this.element_settings = element_settings;

  // Replacing 'nojs' with 'ajax' in the URL allows for an easy method to let
  // the server detect when it needs to degrade gracefully.
  // There are five scenarios to check for:
  // 1. /nojs/
  // 2. /nojs$ - The end of a URL string.
  // 3. /nojs? - Followed by a query (with clean URLs enabled).
  //      E.g.: path/nojs?destination=foobar
  // 4. /nojs& - Followed by a query (without clean URLs enabled).
  //      E.g.: ?q=path/nojs&destination=foobar
  // 5. /nojs# - Followed by a fragment.
  //      E.g.: path/nojs#myfragment
  this.url = element_settings.url.replace(/\/nojs(\/|$|\?|&|#)/g, '/ajax$1');
  this.wrapper = '#' + element_settings.wrapper;

  // If there isn't a form, jQuery.ajax() will be used instead, allowing us to
  // bind Ajax to links as well.
  if (this.element.form) {
    this.form = $(this.element.form);
  }

  // Set the options for the ajaxSubmit function.
  // The 'this' variable will not persist inside of the options object.
  var ajax = this;
  ajax.options = {
    url: ajax.url,
    data: ajax.submit,
    beforeSerialize: function (element_settings, options) {
      return ajax.beforeSerialize(element_settings, options);
    },
    beforeSubmit: function (form_values, element_settings, options) {
      ajax.ajaxing = true;
      return ajax.beforeSubmit(form_values, element_settings, options);
    },
    beforeSend: function (xmlhttprequest, options) {
      ajax.ajaxing = true;
      return ajax.beforeSend(xmlhttprequest, options);
    },
    success: function (response, status) {
      // Sanity check for browser support (object expected).
      // When using iFrame uploads, responses must be returned as a string.
      if (typeof response == 'string') {
        response = $.parseJSON(response);
      }
      return ajax.success(response, status);
    },
    complete: function (response, status) {
      ajax.ajaxing = false;
      if (status == 'error' || status == 'parsererror') {
        return ajax.error(response, ajax.url);
      }
    },
    dataType: 'json',
    type: 'POST'
  };

  // Bind the ajaxSubmit function to the element event.
  $(ajax.element).bind(element_settings.event, function (event) {
    return ajax.eventResponse(this, event);
  });

  // If necessary, enable keyboard submission so that Ajax behaviors
  // can be triggered through keyboard input as well as e.g. a mousedown
  // action.
  if (element_settings.keypress) {
    $(ajax.element).keypress(function (event) {
      return ajax.keypressResponse(this, event);
    });
  }

  // If necessary, prevent the browser default action of an additional event.
  // For example, prevent the browser default action of a click, even if the
  // AJAX behavior binds to mousedown.
  if (element_settings.prevent) {
    $(ajax.element).bind(element_settings.prevent, false);
  }
};

/**
 * Handle a key press.
 *
 * The Ajax object will, if instructed, bind to a key press response. This
 * will test to see if the key press is valid to trigger this event and
 * if it is, trigger it for us and prevent other keypresses from triggering.
 * In this case we're handling RETURN and SPACEBAR keypresses (event codes 13
 * and 32. RETURN is often used to submit a form when in a textfield, and 
 * SPACE is often used to activate an element without submitting. 
 */
Drupal.ajax.prototype.keypressResponse = function (element, event) {
  // Create a synonym for this to reduce code confusion.
  var ajax = this;

  // Detect enter key and space bar and allow the standard response for them,
  // except for form elements of type 'text' and 'textarea', where the 
  // spacebar activation causes inappropriate activation if #ajax['keypress'] is 
  // TRUE. On a text-type widget a space should always be a space.
  if (event.which == 13 || (event.which == 32 && element.type != 'text' && element.type != 'textarea')) {
    $(ajax.element_settings.element).trigger(ajax.element_settings.event);
    return false;
  }
};

/**
 * Handle an event that triggers an Ajax response.
 *
 * When an event that triggers an Ajax response happens, this method will
 * perform the actual Ajax call. It is bound to the event using
 * bind() in the constructor, and it uses the options specified on the
 * ajax object.
 */
Drupal.ajax.prototype.eventResponse = function (element, event) {
  // Create a synonym for this to reduce code confusion.
  var ajax = this;

  // Do not perform another ajax command if one is already in progress.
  if (ajax.ajaxing) {
    return false;
  }

  try {
    if (ajax.form) {
      // If setClick is set, we must set this to ensure that the button's
      // value is passed.
      if (ajax.setClick) {
        // Mark the clicked button. 'form.clk' is a special variable for
        // ajaxSubmit that tells the system which element got clicked to
        // trigger the submit. Without it there would be no 'op' or
        // equivalent.
        element.form.clk = element;
      }

      ajax.form.ajaxSubmit(ajax.options);
    }
    else {
      ajax.beforeSerialize(ajax.element, ajax.options);
      $.ajax(ajax.options);
    }
  }
  catch (e) {
    // Unset the ajax.ajaxing flag here because it won't be unset during
    // the complete response.
    ajax.ajaxing = false;
    alert("An error occurred while attempting to process " + ajax.options.url + ": " + e.message);
  }

  // For radio/checkbox, allow the default event. On IE, this means letting
  // it actually check the box.
  if (typeof element.type != 'undefined' && (element.type == 'checkbox' || element.type == 'radio')) {
    return true;
  }
  else {
    return false;
  }

};

/**
 * Handler for the form serialization.
 *
 * Runs before the beforeSend() handler (see below), and unlike that one, runs
 * before field data is collected.
 */
Drupal.ajax.prototype.beforeSerialize = function (element, options) {
  // Allow detaching behaviors to update field values before collecting them.
  // This is only needed when field values are added to the POST data, so only
  // when there is a form such that this.form.ajaxSubmit() is used instead of
  // $.ajax(). When there is no form and $.ajax() is used, beforeSerialize()
  // isn't called, but don't rely on that: explicitly check this.form.
  if (this.form) {
    var settings = this.settings || Drupal.settings;
    Drupal.detachBehaviors(this.form, settings, 'serialize');
  }

  // Prevent duplicate HTML ids in the returned markup.
  // @see drupal_html_id()
  options.data['ajax_html_ids[]'] = [];
  $('[id]').each(function () {
    options.data['ajax_html_ids[]'].push(this.id);
  });

  // Allow Drupal to return new JavaScript and CSS files to load without
  // returning the ones already loaded.
  // @see ajax_base_page_theme()
  // @see drupal_get_css()
  // @see drupal_get_js()
  options.data['ajax_page_state[theme]'] = Drupal.settings.ajaxPageState.theme;
  options.data['ajax_page_state[theme_token]'] = Drupal.settings.ajaxPageState.theme_token;
  for (var key in Drupal.settings.ajaxPageState.css) {
    options.data['ajax_page_state[css][' + key + ']'] = 1;
  }
  for (var key in Drupal.settings.ajaxPageState.js) {
    options.data['ajax_page_state[js][' + key + ']'] = 1;
  }
};

/**
 * Modify form values prior to form submission.
 */
Drupal.ajax.prototype.beforeSubmit = function (form_values, element, options) {
  // This function is left empty to make it simple to override for modules
  // that wish to add functionality here.
}

/**
 * Prepare the Ajax request before it is sent.
 */
Drupal.ajax.prototype.beforeSend = function (xmlhttprequest, options) {
  // For forms without file inputs, the jQuery Form plugin serializes the form
  // values, and then calls jQuery's $.ajax() function, which invokes this
  // handler. In this circumstance, options.extraData is never used. For forms
  // with file inputs, the jQuery Form plugin uses the browser's normal form
  // submission mechanism, but captures the response in a hidden IFRAME. In this
  // circumstance, it calls this handler first, and then appends hidden fields
  // to the form to submit the values in options.extraData. There is no simple
  // way to know which submission mechanism will be used, so we add to extraData
  // regardless, and allow it to be ignored in the former case.
  if (this.form) {
    options.extraData = options.extraData || {};

    // Let the server know when the IFRAME submission mechanism is used. The
    // server can use this information to wrap the JSON response in a TEXTAREA,
    // as per http://jquery.malsup.com/form/#file-upload.
    options.extraData.ajax_iframe_upload = '1';

    // The triggering element is about to be disabled (see below), but if it
    // contains a value (e.g., a checkbox, textfield, select, etc.), ensure that
    // value is included in the submission. As per above, submissions that use
    // $.ajax() are already serialized prior to the element being disabled, so
    // this is only needed for IFRAME submissions.
    var v = $.fieldValue(this.element);
    if (v !== null) {
      options.extraData[this.element.name] = v;
    }
  }

  // Disable the element that received the change to prevent user interface
  // interaction while the Ajax request is in progress. ajax.ajaxing prevents
  // the element from triggering a new request, but does not prevent the user
  // from changing its value.
  $(this.element).addClass('progress-disabled').attr('disabled', true);

  // Insert progressbar or throbber.
  if (this.progress.type == 'bar') {
    var progressBar = new Drupal.progressBar('ajax-progress-' + this.element.id, eval(this.progress.update_callback), this.progress.method, eval(this.progress.error_callback));
    if (this.progress.message) {
      progressBar.setProgress(-1, this.progress.message);
    }
    if (this.progress.url) {
      progressBar.startMonitoring(this.progress.url, this.progress.interval || 1500);
    }
    this.progress.element = $(progressBar.element).addClass('ajax-progress ajax-progress-bar');
    this.progress.object = progressBar;
    $(this.element).after(this.progress.element);
  }
  else if (this.progress.type == 'throbber') {
    this.progress.element = $('<div class="ajax-progress ajax-progress-throbber"><div class="throbber">&nbsp;</div></div>');
    if (this.progress.message) {
      $('.throbber', this.progress.element).after('<div class="message">' + this.progress.message + '</div>');
    }
    $(this.element).after(this.progress.element);
  }
};

/**
 * Handler for the form redirection completion.
 */
Drupal.ajax.prototype.success = function (response, status) {
  // Remove the progress element.
  if (this.progress.element) {
    $(this.progress.element).remove();
  }
  if (this.progress.object) {
    this.progress.object.stopMonitoring();
  }
  $(this.element).removeClass('progress-disabled').removeAttr('disabled');

  Drupal.freezeHeight();

  for (var i in response) {
    if (response[i]['command'] && this.commands[response[i]['command']]) {
      this.commands[response[i]['command']](this, response[i], status);
    }
  }

  // Reattach behaviors, if they were detached in beforeSerialize(). The
  // attachBehaviors() called on the new content from processing the response
  // commands is not sufficient, because behaviors from the entire form need
  // to be reattached.
  if (this.form) {
    var settings = this.settings || Drupal.settings;
    Drupal.attachBehaviors(this.form, settings);
  }

  Drupal.unfreezeHeight();

  // Remove any response-specific settings so they don't get used on the next
  // call by mistake.
  this.settings = null;
};

/**
 * Build an effect object which tells us how to apply the effect when adding new HTML.
 */
Drupal.ajax.prototype.getEffect = function (response) {
  var type = response.effect || this.effect;
  var speed = response.speed || this.speed;

  var effect = {};
  if (type == 'none') {
    effect.showEffect = 'show';
    effect.hideEffect = 'hide';
    effect.showSpeed = '';
  }
  else if (type == 'fade') {
    effect.showEffect = 'fadeIn';
    effect.hideEffect = 'fadeOut';
    effect.showSpeed = speed;
  }
  else {
    effect.showEffect = type + 'Toggle';
    effect.hideEffect = type + 'Toggle';
    effect.showSpeed = speed;
  }

  return effect;
};

/**
 * Handler for the form redirection error.
 */
Drupal.ajax.prototype.error = function (response, uri) {
  alert(Drupal.ajaxError(response, uri));
  // Remove the progress element.
  if (this.progress.element) {
    $(this.progress.element).remove();
  }
  if (this.progress.object) {
    this.progress.object.stopMonitoring();
  }
  // Undo hide.
  $(this.wrapper).show();
  // Re-enable the element.
  $(this.element).removeClass('progress-disabled').removeAttr('disabled');
  // Reattach behaviors, if they were detached in beforeSerialize().
  if (this.form) {
    var settings = response.settings || this.settings || Drupal.settings;
    Drupal.attachBehaviors(this.form, settings);
  }
};

/**
 * Provide a series of commands that the server can request the client perform.
 */
Drupal.ajax.prototype.commands = {
  /**
   * Command to insert new content into the DOM.
   */
  insert: function (ajax, response, status) {
    // Get information from the response. If it is not there, default to
    // our presets.
    var wrapper = response.selector ? $(response.selector) : $(ajax.wrapper);
    var method = response.method || ajax.method;
    var effect = ajax.getEffect(response);

    // We don't know what response.data contains: it might be a string of text
    // without HTML, so don't rely on jQuery correctly iterpreting
    // $(response.data) as new HTML rather than a CSS selector. Also, if
    // response.data contains top-level text nodes, they get lost with either
    // $(response.data) or $('<div></div>').replaceWith(response.data).
    var new_content_wrapped = $('<div></div>').html(response.data);
    var new_content = new_content_wrapped.contents();

    // For legacy reasons, the effects processing code assumes that new_content
    // consists of a single top-level element. Also, it has not been
    // sufficiently tested whether attachBehaviors() can be successfully called
    // with a context object that includes top-level text nodes. However, to
    // give developers full control of the HTML appearing in the page, and to
    // enable Ajax content to be inserted in places where DIV elements are not
    // allowed (e.g., within TABLE, TR, and SPAN parents), we check if the new
    // content satisfies the requirement of a single top-level element, and
    // only use the container DIV created above when it doesn't. For more
    // information, please see http://drupal.org/node/736066.
    if (new_content.length != 1 || new_content.get(0).nodeType != 1) {
      new_content = new_content_wrapped;
    }

    // If removing content from the wrapper, detach behaviors first.
    switch (method) {
      case 'html':
      case 'replaceWith':
      case 'replaceAll':
      case 'empty':
      case 'remove':
        var settings = response.settings || ajax.settings || Drupal.settings;
        Drupal.detachBehaviors(wrapper, settings);
    }

    // Add the new content to the page.
    wrapper[method](new_content);

    // Immediately hide the new content if we're using any effects.
    if (effect.showEffect != 'show') {
      new_content.hide();
    }

    // Determine which effect to use and what content will receive the
    // effect, then show the new content.
    if ($('.ajax-new-content', new_content).length > 0) {
      $('.ajax-new-content', new_content).hide();
      new_content.show();
      $('.ajax-new-content', new_content)[effect.showEffect](effect.showSpeed);
    }
    else if (effect.showEffect != 'show') {
      new_content[effect.showEffect](effect.showSpeed);
    }

    // Attach all JavaScript behaviors to the new content, if it was successfully
    // added to the page, this if statement allows #ajax['wrapper'] to be
    // optional.
    if (new_content.parents('html').length > 0) {
      // Apply any settings from the returned JSON if available.
      var settings = response.settings || ajax.settings || Drupal.settings;
      Drupal.attachBehaviors(new_content, settings);
    }
  },

  /**
   * Command to remove a chunk from the page.
   */
  remove: function (ajax, response, status) {
    var settings = response.settings || ajax.settings || Drupal.settings;
    Drupal.detachBehaviors($(response.selector), settings);
    $(response.selector).remove();
  },

  /**
   * Command to mark a chunk changed.
   */
  changed: function (ajax, response, status) {
    if (!$(response.selector).hasClass('ajax-changed')) {
      $(response.selector).addClass('ajax-changed');
      if (response.asterisk) {
        $(response.selector).find(response.asterisk).append(' <span class="ajax-changed">*</span> ');
      }
    }
  },

  /**
   * Command to provide an alert.
   */
  alert: function (ajax, response, status) {
    alert(response.text, response.title);
  },

  /**
   * Command to provide the jQuery css() function.
   */
  css: function (ajax, response, status) {
    $(response.selector).css(response.argument);
  },

  /**
   * Command to set the settings that will be used for other commands in this response.
   */
  settings: function (ajax, response, status) {
    if (response.merge) {
      $.extend(true, Drupal.settings, response.settings);
    }
    else {
      ajax.settings = response.settings;
    }
  },

  /**
   * Command to attach data using jQuery's data API.
   */
  data: function (ajax, response, status) {
    $(response.selector).data(response.name, response.value);
  },

  /**
   * Command to apply a jQuery method.
   */
  invoke: function (ajax, response, status) {
    var $element = $(response.selector);
    $element[response.method].apply($element, response.arguments);
  },

  /**
   * Command to restripe a table.
   */
  restripe: function (ajax, response, status) {
    // :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:visible, > tr:visible', $(response.selector))
      .removeClass('odd even')
      .filter(':even').addClass('odd').end()
      .filter(':odd').addClass('even');
  }
};

})(jQuery);
;