/***********************************************
* Accordion Content script- (c) Dynamic Drive DHTML code library (www.dynamicdrive.com)
* Visit http://www.dynamicDrive.com for hundreds of DHTML scripts
* This notice must stay intact for legal use
***********************************************/

var ddaccordion={
 
 contentclassname:{}, //object to store corresponding contentclass name based on headerclass

 expandone:function(headerclass, selected){ //PUBLIC function to expand a particular header
  this.toggleone(headerclass, selected, "expand")
 },

 collapseone:function(headerclass, selected){ //PUBLIC function to collapse a particular header
  this.toggleone(headerclass, selected, "collapse")
 },

 expandall:function(headerclass){ //PUBLIC function to expand all headers based on their shared CSS classname
  var $=jQuery
  var $headers=$('.'+headerclass)
  $('.'+this.contentclassname[headerclass]+':hidden').each(function(){
   $headers.eq(parseInt($(this).attr('contentindex'))).trigger("evt_accordion")
  })
 },

 collapseall:function(headerclass){ //PUBLIC function to collapse all headers based on their shared CSS classname
  var $=jQuery
  var $headers=$('.'+headerclass)
  $('.'+this.contentclassname[headerclass]+':visible').each(function(){
   $headers.eq(parseInt($(this).attr('contentindex'))).trigger("evt_accordion")
  })
 },

 toggleone:function(headerclass, selected, optstate){ //PUBLIC function to expand/ collapse a particular header
  var $=jQuery
  var $targetHeader=$('.'+headerclass).eq(selected)
  var $subcontent=$('.'+this.contentclassname[headerclass]).eq(selected)
  if (typeof optstate=="undefined" || optstate=="expand" && $subcontent.is(":hidden") || optstate=="collapse" && $subcontent.is(":visible"))
   $targetHeader.trigger("evt_accordion")
 },

 expandit:function($targetHeader, $targetContent, config, useractivated, directclick){
  this.transformHeader($targetHeader, config, "expand")
  $targetContent.slideDown(config.animatespeed, function(){
   config.onopenclose($targetHeader.get(0), parseInt($targetHeader.attr('headerindex')), $targetContent.css('display'), useractivated)
   if (config.postreveal=="gotourl" && directclick){ //if revealtype is "Go to Header URL upon click", and this is a direct click on the header
    var targetLink=($targetHeader.is("a"))? $targetHeader.get(0) : $targetHeader.find('a:eq(0)').get(0)
    if (targetLink) //if this header is a link
     setTimeout(function(){location=targetLink.href}, 200) //ignore link target, as window.open(targetLink, targetLink.target) doesn't work in FF if popup blocker enabled
   }
  })
 },

 collapseit:function($targetHeader, $targetContent, config, isuseractivated){
  this.transformHeader($targetHeader, config, "collapse")
  $targetContent.slideUp(config.animatespeed, function(){config.onopenclose($targetHeader.get(0), parseInt($targetHeader.attr('headerindex')), $targetContent.css('display'), isuseractivated)})
 },

 transformHeader:function($targetHeader, config, state){
  $targetHeader.addClass((state=="expand")? config.cssclass.expand : config.cssclass.collapse) //alternate btw "expand" and "collapse" CSS classes
  .removeClass((state=="expand")? config.cssclass.collapse : config.cssclass.expand)
  if (config.htmlsetting.location=='src'){ //Change header image (assuming header is an image)?
   $targetHeader=($targetHeader.is("img"))? $targetHeader : $targetHeader.find('img').eq(0) //Set target to either header itself, or first image within header
   $targetHeader.attr('src', (state=="expand")? config.htmlsetting.expand : config.htmlsetting.collapse) //change header image
  }
  else if (config.htmlsetting.location=="prefix") //if change "prefix" HTML, locate dynamically added ".accordprefix" span tag and change it
   $targetHeader.find('.accordprefix').html((state=="expand")? config.htmlsetting.expand : config.htmlsetting.collapse)
  else if (config.htmlsetting.location=="suffix")
   $targetHeader.find('.accordsuffix').html((state=="expand")? config.htmlsetting.expand : config.htmlsetting.collapse)
 },

 urlparamselect:function(headerclass){
  var result=window.location.search.match(new RegExp(headerclass+"=((\\d+)(,(\\d+))*)", "i")) //check for "?headerclass=2,3,4" in URL
  if (result!=null)
   result=RegExp.$1.split(',')
  return result //returns null, [index], or [index1,index2,etc], where index are the desired selected header indices
 },

 getCookie:function(Name){ 
  var re=new RegExp(Name+"=[^;]+", "i") //construct RE to search for target name/value pair
  if (document.cookie.match(re)) //if cookie found
   return document.cookie.match(re)[0].split("=")[1] //return its value
  return null
 },

 setCookie:function(name, value){
  document.cookie = name + "=" + value + "; path=/"
 },

 init:function(config){
 document.write('<style type="text/css">\n')
 document.write('.'+config.contentclass+'{display: none}\n') //generate CSS to hide contents
 document.write('<\/style>')
 jQuery(document).ready(function($){
  ddaccordion.urlparamselect(config.headerclass)
  var persistedheaders=ddaccordion.getCookie(config.headerclass)
  ddaccordion.contentclassname[config.headerclass]=config.contentclass //remember contentclass name based on headerclass
  config.cssclass={collapse: config.toggleclass[0], expand: config.toggleclass[1]} //store expand and contract CSS classes as object properties
  config.revealtype=config.revealtype || "click"
  config.revealtype=config.revealtype.replace(/mouseover/i, "mouseenter")
  if (config.revealtype=="clickgo"){
   config.postreveal="gotourl" //remember added action
   config.revealtype="click" //overwrite revealtype to "click" keyword
  }
  if (typeof config.togglehtml=="undefined")
   config.htmlsetting={location: "none"}
  else
   config.htmlsetting={location: config.togglehtml[0], collapse: config.togglehtml[1], expand: config.togglehtml[2]} //store HTML settings as object properties
  config.oninit=(typeof config.oninit=="undefined")? function(){} : config.oninit //attach custom "oninit" event handler
  config.onopenclose=(typeof config.onopenclose=="undefined")? function(){} : config.onopenclose //attach custom "onopenclose" event handler
  var lastexpanded={} //object to hold reference to last expanded header and content (jquery objects)
  var expandedindices=ddaccordion.urlparamselect(config.headerclass) || ((config.persiststate && persistedheaders!=null)? persistedheaders : config.defaultexpanded)
  if (typeof expandedindices=='string') //test for string value (exception is config.defaultexpanded, which is an array)
   expandedindices=expandedindices.replace(/c/ig, '').split(',') //transform string value to an array (ie: "c1,c2,c3" becomes [1,2,3]
  var $subcontents=$('.'+config["contentclass"])
  if (expandedindices.length==1 && expandedindices[0]=="-1") //check for expandedindices value of [-1], indicating persistence is on and no content expanded
   expandedindices=[]
  if (config["collapseprev"] && expandedindices.length>1) //only allow one content open?
   expandedindices=[expandedindices.pop()] //return last array element as an array (for sake of jQuery.inArray())
  if (config["onemustopen"] && expandedindices.length==0) //if at least one content should be open at all times and none are, open 1st header
   expandedindices=[0]
  $('.'+config["headerclass"]).each(function(index){ //loop through all headers
   if (/(prefix)|(suffix)/i.test(config.htmlsetting.location) && $(this).html()!=""){ //add a SPAN element to header depending on user setting and if header is a container tag
    $('<span class="accordprefix"></span>').prependTo(this)
    $('<span class="accordsuffix"></span>').appendTo(this)
   }
   $(this).attr('headerindex', index+'h') //store position of this header relative to its peers
   $subcontents.eq(index).attr('contentindex', index+'c') //store position of this content relative to its peers
   var $subcontent=$subcontents.eq(index)
   var needle=(typeof expandedindices[0]=="number")? index : index+'' //check for data type within expandedindices array- index should match that type
   if (jQuery.inArray(needle, expandedindices)!=-1){ //check for headers that should be expanded automatically (convert index to string first)
    if (config.animatedefault==false)
     $subcontent.show()
    ddaccordion.expandit($(this), $subcontent, config, false) //Last param sets 'isuseractivated' parameter
    lastexpanded={$header:$(this), $content:$subcontent}
   }  //end check
   else{
    $subcontent.hide()
    config.onopenclose($(this).get(0), parseInt($(this).attr('headerindex')), $subcontent.css('display'), false) //Last Boolean value sets 'isuseractivated' parameter
    ddaccordion.transformHeader($(this), config, "collapse")
   }
  })
  $('.'+config["headerclass"]).bind("evt_accordion", function(e, isdirectclick){ //assign custom event handler that expands/ contacts a header
    var $subcontent=$subcontents.eq(parseInt($(this).attr('headerindex'))) //get subcontent that should be expanded/collapsed
    if ($subcontent.css('display')=="none"){
     ddaccordion.expandit($(this), $subcontent, config, true, isdirectclick) //2nd last param sets 'isuseractivated' parameter
     if (config["collapseprev"] && lastexpanded.$header && $(this).get(0)!=lastexpanded.$header.get(0)){ //collapse previous content?
      ddaccordion.collapseit(lastexpanded.$header, lastexpanded.$content, config, true) //Last Boolean value sets 'isuseractivated' parameter
     }
     lastexpanded={$header:$(this), $content:$subcontent}
    }
    else if (!config["onemustopen"] || config["onemustopen"] && lastexpanded.$header && $(this).get(0)!=lastexpanded.$header.get(0)){
     ddaccordion.collapseit($(this), $subcontent, config, true) //Last Boolean value sets 'isuseractivated' parameter
    }
   })
  $('.'+config["headerclass"]).bind(config.revealtype, function(){
   if (config.revealtype=="mouseenter"){
    clearTimeout(config.revealdelay)
    var headerindex=parseInt($(this).attr("headerindex"))
    config.revealdelay=setTimeout(function(){ddaccordion.expandone(config["headerclass"], headerindex)}, config.mouseoverdelay || 0)
   }
   else{
    $(this).trigger("evt_accordion", [true])
    return false //cancel default click behavior
   }
  })
  $('.'+config["headerclass"]).bind("mouseleave", function(){
   clearTimeout(config.revealdelay)
  })
  config.oninit($('.'+config["headerclass"]).get(), expandedindices)
  $(window).bind('unload', function(){ //clean up and persist on page unload
   $('.'+config["headerclass"]).unbind()
   var expandedindices=[]
   $('.'+config["contentclass"]+":visible").each(function(index){ //get indices of expanded headers
    expandedindices.push($(this).attr('contentindex'))
   })
   if (config.persiststate==true && $('.'+config["headerclass"]).length>0){ //persist state?
    expandedindices=(expandedindices.length==0)? '-1c' : expandedindices //No contents expanded, indicate that with dummy '-1c' value?
    ddaccordion.setCookie(config.headerclass, expandedindices)
   }
  })
 })
 }
}


// FOR MAIN FILTERS
ddaccordion.init({
 headerclass: "submenuheader", //Shared CSS class name of headers group
 contentclass: "submenu", //Shared CSS class name of contents group
 revealtype: "click", //Reveal content when user clicks or onmouseover the header? Valid value: "click", "clickgo", or "mouseover"
 mouseoverdelay: 200, //if revealtype="mouseover", set delay in milliseconds before header expands onMouseover
 collapseprev: true, //Collapse previous content (so only one open at any time)? true/false 
 defaultexpanded: [],// categoryID
 //defaultexpanded: [], //index of content(s) open by default [index1, index2, etc] [] denotes no content
 onemustopen: false, //Specify whether at least one header should be open always (so never all headers closed)
 animatedefault: true, //Should contents open by default be animated into view?
 persiststate: false, //persist state of opened contents within browser session?
 toggleclass: ["", ""], //Two CSS classes to be applied to the header when it's collapsed and expanded, respectively ["class1", "class2"]
 togglehtml: ["suffix", "<img src='/hostedstore/templates/backscatter/images/filter_plus.png' class='statusicon' />", "<img src='/hostedstore/templates/backscatter/images/filter_minus.png' class='statusicon' />"], //Additional HTML added to the header when it's collapsed and expanded, respectively  ["position", "html1", "html2"] (see docs)
 animatespeed: 250, //speed of animation: integer in milliseconds (animatespeed: 200), or keywords "fast", "normal", or "slow"
 oninit:function(headers, expandedindices){ //custom code to run when headers have initalized
  //do nothing
 },
 onopenclose:function(header, index, state, isuseractivated){ //custom code to run whenever a header is opened or closed
  //do nothing
 }
})