//Accordion Content script: By Dynamic Drive, at http://www.dynamicdrive.com
//Created: Jan 7th, 08'
//Version 1.3: April 3rd, 08':
//**1) Script now no longer conflicts with other JS frameworks
//**2) Adds custom oninit() and onopenclose() event handlers that fire when Accordion Content instance has initialized, plus whenever a header is opened/closed
//**3) Adds support for expanding header(s) using the URL parameter (ie: http://mysite.com/accordion.htm?headerclass=0,1)

//April 9th, 08': Fixed "defaultexpanded" setting not working when page first loads

//Version 1.4: June 4th, 08':
//**1) Added option to activate a header "mouseover" instead of the default "click"
//**2) Bug persistence not working when used with jquery 1.2.6

//Version 1.5: June 20th, 08':
//**1) Adds new "onemustopen:true/false" parameter, which lets you set whether at least one header should be open at all times (so never all closed).
//**2) Changed cookie path to site wide for persistence feature
//**3) Fixed bug so "expandedindices" parameter in oninit(headers, expandedindices) returns empty array [] instead of [-1] when no expanded headers found

//Version 1.5.1: June 27th, 08': Fixed "defaultexpanded" setting not working properly when used with jquery 1.2.6

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){
$targetContent.slideDown(config.animatespeed, function(){config.onopenclose($targetHeader.get(0), parseInt($targetHeader.attr('headerindex')), $targetContent.css('display'), useractivated)})
this.transformHeader($targetHeader, config, "expand")
},

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

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('