function createAjaxObj(){
var httprequest=false
if (window.XMLHttpRequest){ // if Mozilla, Safari etc
httprequest=new XMLHttpRequest()
if (httprequest.overrideMimeType)
httprequest.overrideMimeType('text/xml')
}
else if (window.ActiveXObject){ // if IE
try {
httprequest=new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e){
try{
httprequest=new ActiveXObject("Microsoft.XMLHTTP");
}
catch (e){}
}
}
return httprequest
}

// -------------------------------------------------------------------
// Main RSS Ticker Object function
// rss_ticker(RSS_id, cachetime, divId, divClass, delay, optionalswitch)
// -------------------------------------------------------------------

function rss_ticker(RSS_id, cachetime, divId, divClass, delay, optionalswitch){
this.RSS_id=RSS_id //Array key indicating which RSS feed to display
this.cachetime=cachetime //Time to cache feed, in minutes. 0=no cache.
this.tickerid=divId //ID of ticker div to display information
this.delay=delay //Delay between msg change, in miliseconds.
this.logicswitch=(typeof optionalswitch!="undefined")? optionalswitch : -1
this.mouseoverBol=0 //Boolean to indicate whether mouse is currently over ticker (and pause it if it is)
this.pointer=0
this.ajaxobj=createAjaxObj()
document.write('<div id="'+divId+'" class="'+divClass+'">Initializing ticker...</div>')
this.getAjaxcontent()
}

// -------------------------------------------------------------------
// getAjaxcontent()- Makes asynchronous GET request to "rssfetch.php" with the supplied parameters
// -------------------------------------------------------------------

rss_ticker.prototype.getAjaxcontent=function(){
if (this.ajaxobj){
var instanceOfTicker=this
var parameters="id="+encodeURIComponent(this.RSS_id)+"&cachetime="+this.cachetime+"&bustcache="+new Date().getTime()
this.ajaxobj.onreadystatechange=function(){instanceOfTicker.initialize()}
this.ajaxobj.open('GET', "/cms/rssfetch?"+parameters, true)
this.ajaxobj.send(null)
}
}

// -------------------------------------------------------------------
// initialize()- Initialize ticker method.
// -Gets contents of RSS content and parse it using JavaScript DOM methods
// -------------------------------------------------------------------

rss_ticker.prototype.initialize=function(){
   if (this.ajaxobj.readyState == 4){ //if request of file completed
   if (this.ajaxobj.status==200){ //if request was successful
  
      var xmldata=this.ajaxobj.responseXML;
   if (xmldata.getElementsByTagName("item").length==0){ //if no <item> elements found in returned content
      document.getElementById(this.tickerid).innerHTML="<b>Error</b> fetching remote RSS feed!<br />";
      return
   }
   var instanceOfTicker=this
  
   this.feeditems=xmldata.getElementsByTagName("item")


   //Cycle through RSS XML object and store each piece of the item element as an attribute of the element
   for (var i=0; i<this.feeditems.length; i++){
      this.feeditems[i].setAttribute("ctitle", this.feeditems[i].getElementsByTagName("title")[0].firstChild.nodeValue);
      this.feeditems[i].setAttribute("clink", this.feeditems[i].getElementsByTagName("link")[0].firstChild.nodeValue);
      this.feeditems[i].setAttribute("cdescription", this.feeditems[i].getElementsByTagName("description")[0].firstChild.nodeValue);
      if ( this.feeditems[i].getElementsByTagName("pubDate")[0] ) {
         var mydate = this.feeditems[i].getElementsByTagName("pubDate")[0].firstChild.nodeValue;
         this.feeditems[i].setAttribute("cdate",mydate.substr(mydate,22,1));
      }
   }
   document.getElementById(this.tickerid).onmouseover=function(){instanceOfTicker.mouseoverBol=1}
   document.getElementById(this.tickerid).onmouseout=function(){instanceOfTicker.mouseoverBol=0}
   this.rotatemsg()
}
}
}

// -------------------------------------------------------------------
// rotatemsg()- Rotate through RSS messages and displays them
// -------------------------------------------------------------------

rss_ticker.prototype.rotatemsg=function(){
var instanceOfTicker=this
if (this.mouseoverBol==1) //if mouse is currently over ticker, do nothing (pause it)
setTimeout(function(){instanceOfTicker.rotatemsg()}, 100)
else{
var tickerDiv=document.getElementById(this.tickerid)
var tickercontent='<a class="rsslink" target="_blank" href="'+this.feeditems[this.pointer].getAttribute("clink")+'">'+this.feeditems[this.pointer].getAttribute("ctitle")+'</a>'
if (this.logicswitch.indexOf('date') > -1 && 
   this.feeditems[this.pointer].getAttribute("cdate"))

   tickercontent+="<br /><span class='rssdate'>"+this.feeditems[this.pointer].getAttribute("cdate")+'</span>';

if (this.logicswitch.indexOf('desc') > -1 ) {
   if (this.logicswitch.indexOf('date') < 0 ) {
      tickercontent+="<br />";
   }
   else {
      tickercontent+="&#xA0;";
   } 
   
   tickercontent+="<span class='rssbody'>"+this.feeditems[this.pointer].getAttribute("cdescription")+'</span>';
}

tickerDiv.innerHTML=tickercontent;
this.pointer=(this.pointer<this.feeditems.length-1)? this.pointer+1 : 0
setTimeout(function(){instanceOfTicker.rotatemsg()}, this.delay) //update container every second
}
}