//** Featured Content Slider script- © Dynamic Drive DHTML code library (http://www.dynamicdrive.com)
//** Last updated: Feb 28th- 07- Added ability to customize pagination links' text

////Ajax related settings
var csbustcachevar=0 //bust potential caching of external pages after initial Ajax request? (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=="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 || "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"])
         }
    }
    
    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
         slidernodes[sliderid][thepage].style.display="block" //show selected DIV
         //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)
    }
    
    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
            }
        }
    }