// JavaScript Document


























//** Accordion Content script: By Dynamic Drive, at http://www.dynamicdrive.com


























//** Created: Jan 7th, 08'. Last updated: June 7th, 2010 to v1.9





















































//Version 1.9: June 7th, 2010':


























//**1) Ajax content support added, so a given header's content can be dynamically fetched from an external file and on demand.


























//**2) Optimized script performance by caching header and content container references
















































































var ddaccordion={


























	ajaxloadingmsg: '<img src="loading2.gif" /><br />Loading Content...', //customize HTML to output while Ajax content is being fetched (if applicable)





















































	headergroup: {}, //object to store corresponding header group based on headerclass value


























	contentgroup: {}, //object to store corresponding content group based on headerclass value





















































	preloadimages:function($images){


























		$images.each(function(){


























			var preloadimage=new Image()


























			preloadimage.src=this.src


























		})


























	},





















































	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 $headers=this.headergroup[headerclass]


























		this.contentgroup[headerclass].filter(':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 $headers=this.headergroup[headerclass]


























		this.contentgroup[headerclass].filter(':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 $targetHeader=this.headergroup[headerclass].eq(selected)


























		var $subcontent=this.contentgroup[headerclass].eq(selected)


























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


























			$targetHeader.trigger("evt_accordion")


























	},





















































	ajaxloadcontent:function($targetHeader, $targetContent, config, callback){


























		var ajaxinfo=$targetHeader.data('ajaxinfo')





















































		function handlecontent(content){ //nested function


























			if (content){ //if ajax content has loaded


























				ajaxinfo.cacheddata=content //remember ajax content 


























				ajaxinfo.status="cached" //set ajax status to cached


























				if ($targetContent.queue("fx").length==0){ //if this content isn't currently expanding or collapsing


























					$targetContent.hide().html(content) //hide loading message, then set sub content's HTML to ajax content


























					ajaxinfo.status="complete" //set ajax status to complete


























					callback() //execute callback function- expand this sub content


























				}


























			}


























			if (ajaxinfo.status!="complete"){


























				setTimeout(function(){handlecontent(ajaxinfo.cacheddata)}, 100) //call handlecontent() again until ajax content has loaded (ajaxinfo.cacheddata contains data)


























			}


























		} //end nested function





















































		if (ajaxinfo.status=="none"){ //ajax data hasn't been fetched yet


























			$targetContent.html(this.ajaxloadingmsg)


























			$targetContent.slideDown(config.animatespeed)


























			ajaxinfo.status="loading" //set ajax status to "loading"


























			$.ajax({


























				url: ajaxinfo.url, //path to external menu file


























				error:function(ajaxrequest){


























					handlecontent('Error fetching content. Server Response: '+ajaxrequest.responseText)


























				},


























				success:function(content){


























					content=(content=="")? " " : content //if returned content is empty, set it to "space" is content no longer returns false/empty (hasn't loaded yet)


























					handlecontent(content)


























				}


























			})


























		}


























		else if (ajaxinfo.status=="loading")


























			handlecontent(ajaxinfo.cacheddata)


























	},





















































	expandit:function($targetHeader, $targetContent, config, useractivated, directclick, skipanimation){


























		var ajaxinfo=$targetHeader.data('ajaxinfo')


























		if (ajaxinfo){ //if this content should be fetched via Ajax


























			if (ajaxinfo.status=="none" || ajaxinfo.status=="loading")


























				this.ajaxloadcontent($targetHeader, $targetContent, config, function(){ddaccordion.expandit($targetHeader, $targetContent, config, useractivated, directclick)})


























			else if (ajaxinfo.status=="cached"){


























				$targetContent.html(ajaxinfo.cacheddata)


























				ajaxinfo.cacheddata=null


























				ajaxinfo.status="complete"


























			}


























		}


























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


























		$targetContent.slideDown(skipanimation? 0 : 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('a.hiddenajaxlink{display: none}\n') //CSS class to hide ajax link


























	document.write('<\/style>')


























	jQuery(document).ready(function($){


























		ddaccordion.urlparamselect(config.headerclass)


























		var persistedheaders=ddaccordion.getCookie(config.headerclass)


























		ddaccordion.headergroup[config.headerclass]=$('.'+config.headerclass) //remember header group for this accordion


























		ddaccordion.contentgroup[config.headerclass]=$('.'+config.contentclass) //remember content group for this accordion


























		var $headers=ddaccordion.headergroup[config.headerclass]


























		var $subcontents=ddaccordion.contentgroup[config.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]


























		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]


























		$headers.each(function(index){ //loop through all headers


























			var $header=$(this)


























			if (/(prefix)|(suffix)/i.test(config.htmlsetting.location) && $header.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)


























			}


























			$header.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 $hiddenajaxlink=$subcontent.find('a.hiddenajaxlink:eq(0)') //see if this content should be loaded via ajax


























			if ($hiddenajaxlink.length==1){


























				$header.data('ajaxinfo', {url:$hiddenajaxlink.attr('href'), cacheddata:null, status:'none'}) //store info about this ajax content inside header


























			}


























			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)


























				ddaccordion.expandit($header, $subcontent, config, false, false, !config.animatedefault) //3rd last param sets 'isuseractivated' parameter, 2nd last sets isdirectclick, last sets skipanimation param


























				lastexpanded={$header:$header, $content:$subcontent}


























			}  //end check


























			else{


























				$subcontent.hide()


























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


























				ddaccordion.transformHeader($header, config, "collapse")


























			}


























		})


























		$headers.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


























				}


























 		})


























		$headers.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]) //last parameter indicates this is a direct click on the header


























				return false //cancel default click behavior


























			}


























		})


























		$headers.bind("mouseleave", function(){


























			clearTimeout(config.revealdelay)


























		})


























		config.oninit($headers.get(), expandedindices)


























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


























			$headers.unbind()


























			var expandedindices=[]


























			$subcontents.filter(':visible').each(function(index){ //get indices of expanded headers


























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


























			})


























			if (config.persiststate==true && $headers.length>0){ //persist state?


























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


























				ddaccordion.setCookie(config.headerclass, expandedindices)


























			}


























		})


























	})


























	}


























}





















































//preload any images defined inside ajaxloadingmsg variable


























ddaccordion.preloadimages(jQuery(ddaccordion.ajaxloadingmsg).filter('img'))