/*
   * jQuery UI Accordion 1.7.1
   *
   * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
   * Dual licensed under the MIT (MIT-LICENSE.txt)
   * and GPL (GPL-LICENSE.txt) licenses.
   *
   * http://docs.jquery.com/UI/Accordion
   *
   * Depends:
   *        ui.core.js
   */
  (function($)\; \{$.widget("ui.accordion", {
  
          _init: function() {
  
                  var o = this.options, self = this;
                  this.running = 0;
  
                  // if the user set the alwaysOpen option on init
                  // then we need to set the collapsible option
                  // if they set both on init, collapsible will take priority
                  if (o.collapsible == .ui.accordion.defaults.alwaysOpen) {
                          o.collapsible = !o.alwaysOpen;
                  }
  
                  if ( o.navigation ) {
                          var current = this.element.find("a").filter(o.navigationFilter);
                          if ( current.length ) {
                                  if ( current.filter(o.header).length ) {
                                          this.active = current;
                                  } else {
                                          this.active = current.parent().parent().prev();
                                          current.addClass("ui-accordion-content-active");
                                  }
                          }
                  }
  
                  this.element.addClass("ui-accordion ui-widget ui-helper-reset");
                  
                  // in lack of child-selectors in CSS we need to mark top-LIs in a UL-accordion for some IE-fix
                  if (this.element[0].nodeName == "UL") {
                          this.element.children("li").addClass("ui-accordion-li-fix");
                  }
  
                  this.headers = this.element.find(o.header).addClass("ui-accordion-header ui-helper-reset ui-state-default ui-corner-all")
                          .bind("mouseenter.accordion", function(){ this.addClass('ui-state-hover'); })
                          .bind("mouseleave.accordion", function(){ this.removeClass('ui-state-hover'); })
                          .bind("focus.accordion", function(){ this.addClass('ui-state-focus'); })
                          .bind("blur.accordion", function(){ this.removeClass('ui-state-focus'); });
  
                  this.headers
                          .next()
                                  .addClass("ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom");
  
                  this.active = this._findActive(this.active || o.active).toggleClass("ui-state-default").toggleClass("ui-state-active").toggleClass("ui-corner-all").toggleClass("ui-corner-top");
                  this.active.next().addClass('ui-accordion-content-active');
  
                  //Append icon elements
                  $("<span/>").addClass("ui-icon " + o.icons.header).prependTo(this.headers);
                  this.active.find(".ui-icon").toggleClass(o.icons.header).toggleClass(o.icons.headerSelected);
  
                  // IE7-/Win - Extra vertical space in lists fixed
                  if ($.browser.msie)\; \{\; this.element.find(\text{'}a\text{'}).css(\text{'}zoom\text{'},\; \text{'}1\text{'});\; \}\; this.resize();\; //ARIA\; this.element.attr(\text{'}role\text{'},\text{'}tablist\text{'});\; this.headers\; .attr(\text{'}role\text{'},\text{'}tab\text{'})\; .bind(\text{'}keydown\text{'},\; function(event)\; \{\; return\; self.\_keydown(event);\; \})\; .next()\; .attr(\text{'}role\text{'},\text{'}tabpanel\text{'});\; this.headers\; .not(this.active\; ||\; "")\; .attr(\text{'}aria-expanded\text{'},\text{'}false\text{'})\; .attr("tabIndex",\; "-1")\; .next()\; .hide();\; //\; make\; sure\; at\; least\; one\; header\; is\; in\; the\; tab\; order\; if\; (!this.active.length)\; \{\; this.headers.eq(0).attr(\text{'}tabIndex\text{'},\text{'}0\text{'});\; \}\; else\; \{\; this.active\; .attr(\text{'}aria-expanded\text{'},\text{'}true\text{'})\; .attr(\text{'}tabIndex\text{'},\; \text{'}0\text{'});\; \}\; //\; only\; need\; links\; in\; taborder\; for\; Safari\; if\; (!$.browser.safari)
                          this.headers.find('a').attr('tabIndex','-1');
  
                  if (o.event) {
                          this.headers.bind((o.event) + ".accordion", function(event) { return self._clickHandler.call(self, event, this); });
                  }
  
          },
  
          destroy: function() {
                  var o = this.options;
  
                  this.element
                          .removeClass("ui-accordion ui-widget ui-helper-reset")
                          .removeAttr("role")
                          .unbind('.accordion')
                          .removeData('accordion');
  
                  this.headers
                          .unbind(".accordion")
                          .removeClass("ui-accordion-header ui-helper-reset ui-state-default ui-corner-all ui-state-active ui-corner-top")
                          .removeAttr("role").removeAttr("aria-expanded").removeAttr("tabindex");
  
                  this.headers.find("a").removeAttr("tabindex");
                  this.headers.children(".ui-icon").remove();
                  var contents = this.headers.next().css("display", "").removeAttr("role").removeClass("ui-helper-reset ui-widget-content ui-corner-bottom ui-accordion-content ui-accordion-content-active");
                  if (o.autoHeight || o.fillHeight) {
                          contents.css("height", "");
                  }
          },
          
          _setData: function(key, value) {
                  if(key == 'alwaysOpen') { key = 'collapsible'; value = !value; }
                  $.widget.prototype.\_setData.apply(this,\; arguments);\; \},\; \_keydown:\; function(event)\; \{\; var\; o\; =\; this.options,\; keyCode\; =$.ui.keyCode;
  
                  if (o.disabled || event.altKey || event.ctrlKey)
                          return;
  
                  var length = this.headers.length;
                  var currentIndex = this.headers.index(event.target);
                  var toFocus = false;
  
                  switch(event.keyCode) {
                          case keyCode.RIGHT:
                          case keyCode.DOWN:
                                  toFocus = this.headers[(currentIndex + 1) % length];
                                  break;
                          case keyCode.LEFT:
                          case keyCode.UP:
                                  toFocus = this.headers[(currentIndex - 1 + length) % length];
                                  break;
                          case keyCode.SPACE:
                          case keyCode.ENTER:
                                  return this._clickHandler({ target: event.target }, event.target);
                  }
  
                  if (toFocus) {
                          $(event.target).attr('tabIndex','-1');
                          toFocus.attr('tabIndex','0');
                          toFocus.focus();
                          return false;
                  }
  
                  return true;
  
          },
  
          resize: function() {
  
                  var o = this.options, maxHeight;
  
                  if (o.fillSpace) {
                          
                          if($.browser.msie)\; \{\; var\; defOverflow\; =\; this.element.parent().css(\text{'}overflow\text{'});\; this.element.parent().css(\text{'}overflow\text{'},\; \text{'}hidden\text{'});\; \}\; maxHeight\; =\; this.element.parent().height();\; if($.browser.msie) { this.element.parent().css('overflow', defOverflow); }
          
                          this.headers.each(function() {
                                  maxHeight -= this.outerHeight();
                          });
  
                          var maxPadding = 0;
                          this.headers.next().each(function() {
                                  maxPadding = Math.max(maxPadding, this.innerHeight() - this.height());
                          }).height(Math.max(0, maxHeight - maxPadding))
                          .css('overflow', 'auto');
  
                  } else if ( o.autoHeight ) {
                          maxHeight = 0;
                          this.headers.next().each(function() {
                                  maxHeight = Math.max(maxHeight, this.outerHeight());
                          }).height(maxHeight);
                  }
  
          },
  
          activate: function(index) {
                  // call clickHandler with custom event
                  var active = this._findActive(index)[0];
                  this._clickHandler({ target: active }, active);
          },
  
          _findActive: function(selector) {
                  return selector
                          ? typeof selector == "number"
                                  ? this.headers.filter(":eq(" + selector + ")")
                                  : this.headers.not(this.headers.not(selector))
                          : selector === false
                                  ? $([])
                                  : this.headers.filter(":eq(0)");
          },
  
          _clickHandler: function(event, target) {
  
                  var o = this.options;
                  if (o.disabled) return false;
  
                  // called only when using activate(false) to close all parts programmatically
                  if (!event.target && o.collapsible) {
                          this.active.removeClass("ui-state-active ui-corner-top").addClass("ui-state-default ui-corner-all")
                                  .find(".ui-icon").removeClass(o.icons.headerSelected).addClass(o.icons.header);
                          this.active.next().addClass('ui-accordion-content-active');
                          var toHide = this.active.next(),
                                  data = {
                                          options: o,
                                          newHeader: $([]),
                                          oldHeader: o.active,
                                          newContent: $([]),
                                          oldContent: toHide
                                  },
                                  toShow = (this.active = $([]));
                          this._toggle(toShow, toHide, data);
                          return false;
                  }
  
                  // get the click target
                  var clicked = $(event.currentTarget || target);
                  var clickedIsActive = clicked[0] == this.active[0];
  
                  // if animations are still active, or the active header is the target, ignore click
                  if (this.running || (!o.collapsible && clickedIsActive)) {
                          return false;
                  }
  
                  // switch classes
                  this.active.removeClass("ui-state-active ui-corner-top").addClass("ui-state-default ui-corner-all")
                          .find(".ui-icon").removeClass(o.icons.headerSelected).addClass(o.icons.header);
                  this.active.next().addClass('ui-accordion-content-active');
                  if (!clickedIsActive) {
                          clicked.removeClass("ui-state-default ui-corner-all").addClass("ui-state-active ui-corner-top")
                                  .find(".ui-icon").removeClass(o.icons.header).addClass(o.icons.headerSelected);
                          clicked.next().addClass('ui-accordion-content-active');
                  }
  
                  // find elements to show and hide
                  var toShow = clicked.next(),
                          toHide = this.active.next(),
                          data = {
                                  options: o,
                                  newHeader: clickedIsActive && o.collapsible ? $([]) : clicked,
                                  oldHeader: this.active,
                                  newContent: clickedIsActive && o.collapsible ? $([]) : toShow.find('> *'),
                                  oldContent: toHide.find('> *')
                          },
                          down = this.headers.index( this.active[0] ) > this.headers.index( clicked[0] );
  
                  this.active = clickedIsActive ? $([]) : clicked;
                  this._toggle(toShow, toHide, data, clickedIsActive, down);
  
                  return false;
  
          },
  
          _toggle: function(toShow, toHide, data, clickedIsActive, down) {
  
                  var o = this.options, self = this;
  
                  this.toShow = toShow;
                  this.toHide = toHide;
                  this.data = data;
  
                  var complete = function() { if(!self) return; return self._completed.apply(self, arguments); };
  
                  // trigger changestart event
                  this._trigger("changestart", null, this.data);
  
                  // count elements to animate
                  this.running = toHide.size() === 0 ? toShow.size() : toHide.size();
  
                  if (o.animated) {
  
                          var animOptions = {};
  
                          if ( o.collapsible && clickedIsActive ) {
                                  animOptions = {
                                          toShow: $([]),
                                          toHide: toHide,
                                          complete: complete,
                                          down: down,
                                          autoHeight: o.autoHeight || o.fillSpace
                                  };
                          } else {
                                  animOptions = {
                                          toShow: toShow,
                                          toHide: toHide,
                                          complete: complete,
                                          down: down,
                                          autoHeight: o.autoHeight || o.fillSpace
                                  };
                          }
  
                          if (!o.proxied) {
                                  o.proxied = o.animated;
                          }
  
                          if (!o.proxiedDuration) {
                                  o.proxiedDuration = o.duration;
                          }
  
                          o.animated = $.isFunction(o.proxied)\; ?\; o.proxied(animOptions)\; :\; o.proxied;\; o.duration\; =$.isFunction(o.proxiedDuration) ?
                                  o.proxiedDuration(animOptions) : o.proxiedDuration;
  
                          var animations = $.ui.accordion.animations,\; duration\; =\; o.duration,\; easing\; =\; o.animated;\; if\; (!animations[easing])\; \{\; animations[easing]\; =\; function(options)\; \{\; this.slide(options,\; \{\; easing:\; easing,\; duration:\; duration\; ||\; 700\; \});$};
                          }
  
                          animations[easing](animOptions);
  
                  } else {
  
                          if (o.collapsible && clickedIsActive) {
                                  toShow.toggle();
                          } else {
                                  toHide.hide();
                                  toShow.show();
                          }
  
                          complete(true);
  
                  }
  
                  toHide.prev().attr('aria-expanded','false').attr("tabIndex", "-1").blur();
                  toShow.prev().attr('aria-expanded','true').attr("tabIndex", "0").focus();
  
          },
  
          _completed: function(cancel) {
  
                  var o = this.options;
  
                  this.running = cancel ? 0 : --this.running;
                  if (this.running) return;
  
                  if (o.clearStyle) {
                          this.toShow.add(this.toHide).css({
                                  height: "",
                                  overflow: ""
                          });
                  }
  
                  this._trigger('change', null, this.data);
          }
  
  });
  
  .extend($.ui.accordion,\; \{\; version:\; "1.7.1",\; defaults:\; \{\; active:\; null,\; alwaysOpen:\; true,\; //deprecated,\; use\; collapsible\; animated:\; \text{'}slide\text{'},\; autoHeight:\; true,\; clearStyle:\; false,\; collapsible:\; false,\; event:\; "click",\; fillSpace:\; false,\; header:\; ">\; li\; >\; :first-child,>\; :not(li):even",\; icons:\; \{\; header:\; "ui-icon-triangle-1-e",\; headerSelected:\; "ui-icon-triangle-1-s"\; \},\; navigation:\; false,\; navigationFilter:\; function()\; \{\; return\; this.href.toLowerCase()\; ==\; location.href.toLowerCase();\; \}\; \},\; animations:\; \{\; slide:\; function(options,\; additions)\; \{\; options\; =$.extend({
                                  easing: "swing",
                                  duration: 300
                          }, options, additions);
                          if ( !options.toHide.size() ) {
                                  options.toShow.animate({height: "show"}, options);
                                  return;
                          }
                          if ( !options.toShow.size() ) {
                                  options.toHide.animate({height: "hide"}, options);
                                  return;
                          }
                          var overflow = options.toShow.css('overflow'),
                                  percentDone,
                                  showProps = {},
                                  hideProps = {},
                                  fxAttrs = [ "height", "paddingTop", "paddingBottom" ],
                                  originalWidth;
                          // fix width before calculating height of hidden element
                          var s = options.toShow;
                          originalWidth = s[0].style.width;
                          s.width( parseInt(s.parent().width(),10) - parseInt(s.css("paddingLeft"),10) - parseInt(s.css("paddingRight"),10) - (parseInt(s.css("borderLeftWidth"),10) || 0) - (parseInt(s.css("borderRightWidth"),10) || 0) );
                          
                          $.each(fxAttrs,\; function(i,\; prop)\; \{\; hideProps[prop]\; =\; \text{'}hide\text{'};\; var\; parts\; =\; (\text{'}\text{'}\; +$.css(options.toShow[0], prop)).match(/^([\d+-.]+)(.*)$/);\; showProps[prop]\; =\; \{\; value:\; parts[1],\; unit:\; parts[2]\; ||\; \text{'}px\text{'}$};
                          });
                          options.toShow.css({ height: 0, overflow: 'hidden' }).show();
                          options.toHide.filter(":hidden").each(options.complete).end().filter(":visible").animate(hideProps,{
                                  step: function(now, settings) {
                                          // only calculate the percent when animating height
                                          // IE gets very inconsistent results when animating elements
                                          // with small values, which is common for padding
                                          if (settings.prop == 'height') {
                                                  percentDone = (settings.now - settings.start) / (settings.end - settings.start);
                                          }
                                          
                                          options.toShow[0].style[settings.prop] =
                                                  (percentDone * showProps[settings.prop].value) + showProps[settings.prop].unit;
                                  },
                                  duration: options.duration,
                                  easing: options.easing,
                                  complete: function() {
                                          if ( !options.autoHeight ) {
                                                  options.toShow.css("height", "");
                                          }
                                          options.toShow.css("width", originalWidth);
                                          options.toShow.css({overflow: overflow});
                                          options.complete();
                                  }
                          });
                  },
                  bounceslide: function(options) {
                          this.slide(options, {
                                  easing: options.down ? "easeOutBounce" : "swing",
                                  duration: options.down ? 1000 : 200
                          });
                  },
                  easeslide: function(options) {
                          this.slide(options, {
                                  easing: "easeinout",
                                  duration: 700
                          });
                  }
          }
  });
  
  })(jQuery);