var $j = jQuery.noConflict()



//** 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



//**1) Version 1.5.1: June 27th, 08': Fixed "defaultexpanded" setting not working properly when used with jquery 1.2.6



//Version 1.6: Oct 3rd, 08':

//**1) Adds new "mouseoverdelay" param that sets delay before headers are activated when "revealtype" param is set to "mouseover"

//**2) Fixed bug with "onemustopen" param not working properly when "revealtype" is set to "click"





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 $j=jQuery

		var $jheaders=$j('.'+headerclass)

		$j('.'+this.contentclassname[headerclass]+':hidden').each(function(){

			$jheaders.eq(parseInt($j(this).attr('contentindex'))).trigger("evt_accordion")

		})

	},



	collapseall:function(headerclass){ //PUBLIC function to collapse all headers based on their shared CSS classname

		var $j=jQuery

		var $jheaders=$j('.'+headerclass)

		$j('.'+this.contentclassname[headerclass]+':visible').each(function(){

			$jheaders.eq(parseInt($j(this).attr('contentindex'))).trigger("evt_accordion")

		})

	},



	toggleone:function(headerclass, selected, optstate){ //PUBLIC function to expand/ collapse a particular header

		var $j=jQuery

		var $jtargetHeader=$j('.'+headerclass).eq(selected)

		var $jsubcontent=$j('.'+this.contentclassname[headerclass]).eq(selected)

		if (typeof optstate=="undefined" || optstate=="expand" && $jsubcontent.is(":hidden") || optstate=="collapse" && $jsubcontent.is(":visible"))

			$jtargetHeader.trigger("evt_accordion")

	},



	expandit:function($jtargetHeader, $jtargetContent, config, useractivated){

		$jtargetContent.slideDown(config.animatespeed, function(){config.onopenclose($jtargetHeader.get(0), parseInt($jtargetHeader.attr('headerindex')), $jtargetContent.css('display'), useractivated)})

		this.transformHeader($jtargetHeader, config, "expand")

	},



	collapseit:function($jtargetHeader, $jtargetContent, config, isuseractivated){

		$jtargetContent.slideUp(config.animatespeed, function(){config.onopenclose($jtargetHeader.get(0), parseInt($jtargetHeader.attr('headerindex')), $jtargetContent.css('display'), isuseractivated)})

		this.transformHeader($jtargetHeader, config, "collapse")

	},



	transformHeader:function($jtargetHeader, config, state){

		$jtargetHeader.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)?

			$jtargetHeader=($jtargetHeader.is("img"))? $jtargetHeader : $jtargetHeader.find('img').eq(0) //Set target to either header itself, or first image within header

			$jtargetHeader.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

			$jtargetHeader.find('.accordprefix').html((state=="expand")? config.htmlsetting.expand : config.htmlsetting.collapse)

		else if (config.htmlsetting.location=="suffix")

			$jtargetHeader.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.$j1.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($j){

		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=/^(click)|(mouseover)$j/i.test(config.revealtype)? config.revealtype.replace(/mouseover/i, "mouseenter") : "click"

		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 $jsubcontents=$j('.'+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]

		$j('.'+config["headerclass"]).each(function(index){ //loop through all headers

			if (/(prefix)|(suffix)/i.test(config.htmlsetting.location) && $j(this).html()!=""){ //add a SPAN element to header depending on user setting and if header is a container tag

				$j('<span class="accordprefix"></span>').prependTo(this)

				$j('<span class="accordsuffix"></span>').appendTo(this)

			}

			$j(this).attr('headerindex', index+'h') //store position of this header relative to its peers

			$jsubcontents.eq(index).attr('contentindex', index+'c') //store position of this content relative to its peers

			var $jsubcontent=$jsubcontents.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)

					$jsubcontent.show()

				ddaccordion.expandit($j(this), $jsubcontent, config, false) //Last Boolean value sets 'isuseractivated' parameter

				lastexpanded={$jheader:$j(this), $jcontent:$jsubcontent}

			}  //end check

			else{

				$jsubcontent.hide()

				config.onopenclose($j(this).get(0), parseInt($j(this).attr('headerindex')), $jsubcontent.css('display'), false) //Last Boolean value sets 'isuseractivated' parameter

				ddaccordion.transformHeader($j(this), config, "collapse")

			}

		})

		$j('.'+config["headerclass"]).bind("evt_accordion", function(){ //assign custom event handler that expands/ contacts a header

				var $jsubcontent=$jsubcontents.eq(parseInt($j(this).attr('headerindex'))) //get subcontent that should be expanded/collapsed

				if ($jsubcontent.css('display')=="none"){

					ddaccordion.expandit($j(this), $jsubcontent, config, true) //Last Boolean value sets 'isuseractivated' parameter

					if (config["collapseprev"] && lastexpanded.$jheader && $j(this).get(0)!=lastexpanded.$jheader.get(0)){ //collapse previous content?

						ddaccordion.collapseit(lastexpanded.$jheader, lastexpanded.$jcontent, config, true) //Last Boolean value sets 'isuseractivated' parameter

					}

					lastexpanded={$jheader:$j(this), $jcontent:$jsubcontent}

				}

				else if (!config["onemustopen"] || config["onemustopen"] && lastexpanded.$jheader && $j(this).get(0)!=lastexpanded.$jheader.get(0)){

					ddaccordion.collapseit($j(this), $jsubcontent, config, true) //Last Boolean value sets 'isuseractivated' parameter

				}

 		})

		$j('.'+config["headerclass"]).bind(config.revealtype, function(){

			if (config.revealtype=="mouseenter"){

				clearTimeout(config.revealdelay)

				var headerindex=parseInt($j(this).attr("headerindex"))

				config.revealdelay=setTimeout(function(){ddaccordion.expandone(config["headerclass"], headerindex)}, config.mouseoverdelay || 0)

			}

			else{

				$j(this).trigger("evt_accordion")

				return false //cancel default click behavior

			}

		})

		$j('.'+config["headerclass"]).bind("mouseleave", function(){

			clearTimeout(config.revealdelay)

		})

		config.oninit($j('.'+config["headerclass"]).get(), expandedindices)

		$j(window).bind('unload', function(){ //clean up and persist on page unload

			$j('.'+config["headerclass"]).unbind()

			var expandedindices=[]

			$j('.'+config["contentclass"]+":visible").each(function(index){ //get indices of expanded headers

				expandedindices.push($j(this).attr('contentindex'))

			})

			if (config.persiststate==true){ //persist state?

				expandedindices=(expandedindices.length==0)? '-1c' : expandedindices //No contents expanded, indicate that with dummy '-1c' value?

				ddaccordion.setCookie(config.headerclass, expandedindices)

			}

		})

	})

	}

}