//** Featured Content Slider script- © Dynamic Drive DHTML code library (http://www.dynamicdrive.com)
 //** Last updated: Nov 3rd- 07- Added optional fade transition effect.
 
 ////Ajax related settings
 var csbustcachevar=0 //bust potential caching of external pages after initial Ajax request? (1=yes, 0=no)
 var enabletransition=1 //enable fade into view transition effect? (1=yes, 0=no)
 var csloadstatustext="<img src='modules/mod_fmodslider_books/loading.gif' /> Requesting content..." //HTML to indicate Ajax page is being fetched
 var csexternalfiles=[] //External .css or .js files to load to style the external content(s), if any. Separate multiple files with comma ie: ["cat.css", dog.js"]
 
 ////NO NEED TO EDIT BELOW////////////////////////
 var enablepersist=true
 var slidernodes=new Object() //Object array to store references to each content slider's DIV containers (<div class="contentdiv">)
 var csloadedobjects="" //Variable to store file names of .js/.css files already loaded (if Ajax is used)
 
 function ContentSlider4(sliderid, autorun, customPaginateText, customNextText){
 	var slider=document.getElementById(sliderid)
 	if (typeof customPaginateText!="undefined" && customPaginateText!="") //Custom array of pagination links text defined?
 		slider.paginateText=customPaginateText
 	if (typeof customNextText!="undefined" && customNextText!="") //Custom HTML for "Next" link defined?
 		slider.nextText=customNextText
 	slidernodes[sliderid]=[] //Array to store references to this content slider's DIV containers (<div class="contentdiv">)
 	ContentSlider4.loadobjects(csexternalfiles) //Load external .js and .css files, if any
 	var alldivs=slider.getElementsByTagName("div")
 	for (var i=0; i<alldivs.length; i++){
 		if (alldivs[i].className=="opacitylayer")
 			slider.opacitylayer=alldivs[i]
 		else if (alldivs[i].className=="contentdiv"){
 			slidernodes[sliderid].push(alldivs[i]) //add this DIV reference to array
 			if (typeof alldivs[i].getAttribute("rel")=="string") //If get this DIV's content via Ajax (rel attr contains path to external page)
 				ContentSlider4.ajaxpage(alldivs[i].getAttribute("rel"), alldivs[i])
 		}
 	}
 	ContentSlider4.buildpagination(sliderid)
 	var loadfirstcontent=true
 	if (enablepersist && getCookie(sliderid)!=""){ //if enablepersist is true and cookie contains corresponding value for slider
 		var cookieval=getCookie(sliderid).split(":") //process cookie value ([sliderid, int_pagenumber (div content to jump to)]
 		if (document.getElementById(cookieval[0])!=null && typeof slidernodes[sliderid][cookieval[1]]!="undefined"){ //check cookie value for validity
 			ContentSlider4.turnpage(cookieval[0], parseInt(cookieval[1])) //restore content slider's last shown DIV
 			loadfirstcontent=false
 		}
 	}
 	if (loadfirstcontent==true) //if enablepersist is false, or cookie value doesn't contain valid value for some reason (ie: user modified the structure of the HTML)
 		ContentSlider4.turnpage(sliderid, 0) //Display first DIV within slider
 	if (typeof autorun=="number" && autorun>0) //if autorun parameter (int_miliseconds) is defined, fire auto run sequence
 		window[sliderid+"timer"]=setTimeout(function(){ContentSlider4.autoturnpage(sliderid, autorun)}, autorun)
 }
 
 ContentSlider4.buildpagination=function(sliderid){
 	var slider=document.getElementById(sliderid)
 	var paginatediv=document.getElementById("paginate-"+sliderid) //reference corresponding pagination DIV for slider
 	var pcontent=""
 	for (var i=0; i<slidernodes[sliderid].length; i++) //For each DIV within slider, generate a pagination link
 		pcontent+='<a href="#" onClick=\"ContentSlider4.turnpage(\''+sliderid+'\', '+i+'); return false\">'+(slider.paginateText? slider.paginateText[i] : i+1)+'</a> '
 	pcontent+='<a href="#" style="font-weight: bold;" onClick=\"ContentSlider4.turnpage(\''+sliderid+'\', parseInt(this.getAttribute(\'rel\'))); return false\">'+(slider.nextText || "Next")+'</a>'
 	paginatediv.innerHTML=pcontent
 	paginatediv.onclick=function(){ //cancel auto run sequence (if defined) when user clicks on pagination DIV
 	if (typeof window[sliderid+"timer"]!="undefined")
 		clearTimeout(window[sliderid+"timer"])
 	}
 }
 
 ContentSlider4.turnpage=function(sliderid, thepage){
 	var paginatelinks=document.getElementById("paginate-"+sliderid).getElementsByTagName("a") //gather pagination links
 	for (var i=0; i<slidernodes[sliderid].length; i++){ //For each DIV within slider
 		paginatelinks[i].className="" //empty corresponding pagination link's class name
 		slidernodes[sliderid][i].style.display="none" //hide DIV
 	}
 	paginatelinks[thepage].className="selected" //for selected DIV, set corresponding pagination link's class name
 	if (enabletransition){
 		if (window[sliderid+"fadetimer"])
 			clearTimeout(window[sliderid+"fadetimer"])
 		this.setopacity(sliderid, 0.1)
 	}
 	slidernodes[sliderid][thepage].style.display="block" //show selected DIV
 	if (enabletransition)
 		this.fadeup(sliderid, thepage)
 	//Set "Next" pagination link's (last link within pagination DIV) "rel" attribute to the next DIV number to show
 	paginatelinks[paginatelinks.length-1].setAttribute("rel", thenextpage=(thepage<paginatelinks.length-2)? thepage+1 : 0)
 	if (enablepersist)
 		setCookie(sliderid, sliderid+":"+thepage)
 }
 
 ContentSlider4.autoturnpage=function(sliderid, autorunperiod){
 	var paginatelinks=document.getElementById("paginate-"+sliderid).getElementsByTagName("a") //Get pagination links
 	var nextpagenumber=parseInt(paginatelinks[paginatelinks.length-1].getAttribute("rel")) //Get page number of next DIV to show
 	ContentSlider4.turnpage(sliderid, nextpagenumber) //Show that DIV
 	window[sliderid+"timer"]=setTimeout(function(){ContentSlider4.autoturnpage(sliderid, autorunperiod)}, autorunperiod)
 }
 
 ContentSlider4.setopacity=function(sliderid, value){ //Sets the opacity of targetobject based on the passed in value setting (0 to 1 and in between)
 	var targetobject=document.getElementById(sliderid).opacitylayer || null //reference slider container itself
 	if (targetobject && 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 (targetobject && typeof targetobject.style.MozOpacity!="undefined") //Old Mozilla syntax
 		targetobject.style.MozOpacity=value
 	else if (targetobject && typeof targetobject.style.opacity!="undefined") //Standard opacity syntax
 		targetobject.style.opacity=value
 	targetobject.currentopacity=value
 }
 
 ContentSlider4.fadeup=function(sliderid){
 	var targetobject=document.getElementById(sliderid).opacitylayer || null //reference slider container itself
 	if (targetobject && targetobject.currentopacity<1){
 		this.setopacity(sliderid, targetobject.currentopacity+0.1)
 		window[sliderid+"fadetimer"]=setTimeout(function(){ContentSlider4.fadeup(sliderid)}, 100)
 	}
 }
 
 function getCookie(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 ""
 }
 
 function setCookie(name, value){
 	document.cookie = name+"="+value
 }
 
 ////////////////Ajax Related functions //////////////////////////////////
 
 ContentSlider4.ajaxpage=function(url, thediv){
 	var page_request = false
 	var bustcacheparameter=""
 	if (window.XMLHttpRequest) // if Mozilla, Safari etc
 		page_request = new XMLHttpRequest()
 	else if (window.ActiveXObject){ // if IE
 		try {
 		page_request = new ActiveXObject("Msxml2.XMLHTTP")
 		} 
 		catch (e){
 		try{
 		page_request = new ActiveXObject("Microsoft.XMLHTTP")
 		}
 		catch (e){}
 		}
 	}
 	else
 		return false
 	thediv.innerHTML=csloadstatustext
 	page_request.onreadystatechange=function(){
 		ContentSlider4.loadpage(page_request, thediv)
 	}
 	if (csbustcachevar) //if bust caching of external page
 		bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
 	page_request.open('GET', url+bustcacheparameter, true)
 	page_request.send(null)
 }
 
 ContentSlider4.loadpage=function(page_request, thediv){
 	if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
 		thediv.innerHTML=page_request.responseText
 }
 
 ContentSlider4.loadobjects=function(externalfiles){ //function to load external .js and .css files. Parameter accepts a list of external files to load (array)
 	for (var i=0; i<externalfiles.length; i++){
 		var file=externalfiles[i]
 		var fileref=""
 		if (csloadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding
 			if (file.indexOf(".js")!=-1){ //If object is a js file
 				fileref=document.createElement('script')
 				fileref.setAttribute("type","text/javascript");
 				fileref.setAttribute("src", file);
 			}
 			else if (file.indexOf(".css")!=-1){ //If object is a css file
 				fileref=document.createElement("link")
 				fileref.setAttribute("rel", "stylesheet");
 				fileref.setAttribute("type", "text/css");
 				fileref.setAttribute("href", file);
 			}
 		}
 		if (fileref!=""){
 			document.getElementsByTagName("head").item(0).appendChild(fileref)
 			csloadedobjects+=file+" " //Remember this object as being already added to page
 		}
 	}
 }