//** Featured Content Slider script- (c) Dynamic Drive DHTML code library: http://www.dynamicdrive.com.
//** May 2nd, 08'- Script rewritten and updated to 2.0.
//** Modified for use by The Wasserstrom Company

var featuredcontentslider={

	//3 variables below you can customize if desired:
	ajaxloadingmsg: '<div style="margin: 20px 0 0 20px">Fetching Contents. Please wait...</div>', 
	bustajaxcache: true, //bust caching of external ajax page after 1st request?
	enablepersist: false, //persist to last content viewed when returning to page?

	ajaxconnect:function(setting){
		var page_request = false
		if (window.ActiveXObject){ //Test for support for ActiveXObject in IE first (as XMLHttpRequest in IE7 is broken)
			try {
			page_request = new ActiveXObject("Msxml2.XMLHTTP")
			} 
			catch (e){
				try{
				page_request = new ActiveXObject("Microsoft.XMLHTTP")
				}
				catch (e){}
			}
		}
		else if (window.XMLHttpRequest) // if Mozilla, Safari etc
			page_request = new XMLHttpRequest()
		else
			return false
		var pageurl=setting.contentsource[1]
		page_request.onreadystatechange=function(){
			featuredcontentslider.ajaxpopulate(page_request, setting)
		}
		document.getElementById(setting.id).innerHTML=this.ajaxloadingmsg
		var bustcache=(!this.bustajaxcache)? "" : (pageurl.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
		page_request.open('GET', pageurl+bustcache, true)
		page_request.send(null)
	},

	ajaxpopulate:function(page_request, setting){
		if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1)){
			document.getElementById(setting.id).innerHTML=page_request.responseText
			this.buildpaginate(setting)
		}
	},

	buildcontentdivs:function(setting){
		var alldivs=document.getElementById(setting.id).getElementsByTagName("div")
		for (var i=0; i<alldivs.length; i++){
			if (this.css(alldivs[i], "contentdiv", "check")){ //check for DIVs with class "contentdiv"
				setting.contentdivs.push(alldivs[i])
			}
		}
	},

	buildpaginate:function(setting){
		this.buildcontentdivs(setting)
		var sliderdiv=document.getElementById(setting.id)
		var pdiv=document.getElementById("paginate-"+setting.id)
		var phtml=""
		var toc=setting.toc
		var nextprev=setting.nextprev
		if (typeof toc=="string" && toc!="markup" || typeof toc=="object"){
			for (var i=1; i<=setting.contentdivs.length; i++){
				if(i>1){
					phtml+=' | '
				}
				phtml+='<a href="#'+i+'" class="toc">'+(typeof toc=="string"? toc.replace(/#increment/, i) : toc[i-1])+'</a> '
			}
			phtml=(nextprev[2]!=''? '<a href="#pause" class="pause">'+nextprev[2]+'</a> ' : '') + (nextprev[0]!=''? '<a href="#prev" class="prev">'+nextprev[0]+'</a> ' : '') + phtml + (nextprev[1]!=''? '<a href="#next" class="next">'+nextprev[1]+'</a>' : '')
			pdiv.innerHTML=phtml
		}
		var pdivlinks=pdiv.getElementsByTagName("a")
		var toclinkscount=0 //var to keep track of actual # of toc links
		for (var i=0; i<pdivlinks.length; i++){
			if (this.css(pdivlinks[i], "toc", "check")){
				if (toclinkscount>setting.contentdivs.length-1){ //if this toc link is out of range (user defined more toc links then there are contents)
					pdivlinks[i].style.display="none" //hide this toc link
					continue
				}
				pdivlinks[i].setAttribute("rel", ++toclinkscount) //store page number inside toc link
				pdivlinks[i].onclick=function(){
					featuredcontentslider.turnpage(setting, this.getAttribute("rel"))
					setting.paused=true // for pause button
					return false
				}
				setting.toclinks.push(pdivlinks[i])
			}
			else if (this.css(pdivlinks[i], "prev", "check") || this.css(pdivlinks[i], "next", "check")){ //check for links with class "prev" or "next"
				pdivlinks[i].onclick=function(){
					featuredcontentslider.turnpage(setting, this.className)
					setting.paused=true // for pause button
					return false
				}
			}
			else if (this.css(pdivlinks[i], "pause", "check")){  //check for links with class "pause"
				pdivlinks[i].onclick=function(){
					if(setting.paused==true){
						setting.paused = false
					}else if(setting.paused!=true){
						setting.paused=true 
					}
					return false
				}
			}
		}
		this.turnpage(setting, setting.currentpage, true)
		if (setting.autorotate[0]){
			pdiv.onclick=function(){
				featuredcontentslider.cleartimer(window["fcsautorun"+setting.id])
				setting.paused=true // for pause button
			}
			sliderdiv.onclick=function(){
				featuredcontentslider.cleartimer(window["fcsautorun"+setting.id])
				setting.paused=true // for pause button
			}
			setting.autorotate[1]=setting.autorotate[1]+(1/setting.enablefade[1]*50) //add time to run fade animation (roughly) to delay between rotation
		 this.autorotate(setting)
		}
	},

	turnpage:function(setting, thepage, autocall){
		var currentpage=setting.currentpage //current page # before change
		var totalpages=setting.contentdivs.length
		var turntopage=(/prev/i.test(thepage))? currentpage-1 : (/next/i.test(thepage))? currentpage+1 : parseInt(thepage)
		turntopage=(turntopage<1)? totalpages : (turntopage>totalpages)? 1 : turntopage //test for out of bound and adjust
		setting.temppage++
		if(setting.temppage >= totalpages+1 && setting.paused==false){
			//ends after one rotation
			featuredcontentslider.cleartimer(window["fcsautorun"+setting.id])
		}
		if(setting.temppage >= totalpages+1 && setting.paused==false){
			//setts paused to ture after rotation ends
			setting.paused=true
		}
		if (turntopage==setting.currentpage && typeof autocall=="undefined") //if a pagination link is clicked on repeatedly
			return
		setting.currentpage=turntopage
		setting.contentdivs[turntopage-1].style.zIndex=++setting.topzindex
		this.cleartimer(window["fcsfade"+setting.id])
		if (setting.enablefade[0]==true){
			setting.curopacity=0
			setting.cacheprevpage=setting.prevpage
			this.fadeup(setting)
		}
		if (setting.enablefade[0]==false) //if fade is disabled, fire onChange event immediately (verus after fade is complete)
			setting.onChange(setting.prevpage, setting.currentpage)
		setting.contentdivs[turntopage-1].style.visibility="visible"
		if (setting.prevpage<=setting.toclinks.length) //make sure pagination link exists (may not if manually defined via "markup", and user omitted)
			this.css(setting.toclinks[setting.prevpage-1], "selected", "remove")
		if (turntopage<=setting.toclinks.length) //make sure pagination link exists (may not if manually defined via "markup", and user omitted)
			this.css(setting.toclinks[turntopage-1], "selected", "add")
		setting.prevpage=turntopage
		if (this.enablepersist)
			this.setCookie("fcspersist"+setting.id, turntopage)
	},

	setopacity:function(setting, value){ //Sets the opacity of targetobject based on the passed in value setting (0 to 1 and in between)
		var targetobject=setting.contentdivs[setting.currentpage-1]
		if (targetobject.filters && targetobject.filters[0]){ //IE syntax
			if (typeof targetobject.filters[0].opacity=="number") //IE6
				targetobject.filters[0].opacity=value*100
			else //IE 5.5
				targetobject.style.filter="alpha(opacity="+value*100+")"
		}
		else if (typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax
			targetobject.style.MozOpacity=value
		else if (typeof targetobject.style.opacity!="undefined") //Standard opacity syntax
			targetobject.style.opacity=value
		setting.curopacity=value
	},

	fadeup:function(setting){
		if (setting.curopacity<1){
			this.setopacity(setting, setting.curopacity+setting.enablefade[1])
			window["fcsfade"+setting.id]=setTimeout(function(){featuredcontentslider.fadeup(setting)}, 50)
		}
		else
			setting.onChange(setting.cacheprevpage, setting.currentpage)
	},

	cleartimer:function(timervar){
		if (typeof timervar!="undefined"){
			clearTimeout(timervar)
			clearInterval(timervar)
		}
	},

	css:function(el, targetclass, action){
		var needle=new RegExp("(^|\\s+)"+targetclass+"($|\\s+)", "ig")
		if (action=="check")
			return needle.test(el.className)
		else if (action=="remove")
			el.className=el.className.replace(needle, "")
		else if (action=="add")
			el.className+=" "+targetclass
	},

	autorotate:function(setting){
		window["fcsautorun"+setting.id]=setInterval(function(){featuredcontentslider.turnpage(setting, "next")}, setting.autorotate[1])
	},

	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
	},


	init:function(setting){
		var persistedpage=this.getCookie("fcspersist"+setting.id) || 1
		setting.contentdivs=[]
		setting.toclinks=[]
		setting.paused=false
		setting.killed=false
		setting.topzindex=0
		setting.currentpage=(this.enablepersist)? persistedpage : 1
		setting.prevpage=setting.currentpage
		setting.curopacity=0
		setting.temppage=0
		setting.onChange=setting.onChange || function(){}
		if (setting.contentsource[0]=="inline")
			this.buildpaginate(setting)
		if (setting.contentsource[0]=="ajax")
			this.ajaxconnect(setting)
	}

}