//** 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='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 ContentSlider(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">)
	ContentSlider.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)
	ContentSlider.ajaxpage(alldivs[i].getAttribute("rel"), alldivs[i])
	}
	}
	ContentSlider.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
	ContentSlider.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)
	ContentSlider.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(){ContentSlider.autoturnpage(sliderid, autorun)}, autorun)
}
ContentSlider.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=\"ContentSlider.turnpage(\''+sliderid+'\', '+i+');return false\">'+(slider.paginateText? slider.paginateText[i] : i+1)+'</a> '
	pcontent+='<a href="#" style="font-weight: bold;" onClick=\"ContentSlider.turnpage(\''+sliderid+'\', parseInt(this.getAttribute(\'rel\')));return false\">'+(slider.nextText||"Outro")+'</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"])
	}
}
ContentSlider.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)
}
ContentSlider.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
	ContentSlider.turnpage(sliderid, nextpagenumber)//Show that DIV
	window[sliderid+"timer"]=setTimeout(function(){ContentSlider.autoturnpage(sliderid, autorunperiod)}, autorunperiod)
}
ContentSlider.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
}
ContentSlider.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(){ContentSlider.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 //////////////////////////////////
ContentSlider.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(){
	ContentSlider.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)
}
ContentSlider.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
}
ContentSlider.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
	}
	}
}