var lastrssbridgeurl="/includes/rss/lastrss/bridge.php"

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

function rssticker_ajax(RSS_id, cachetime, divId, divClass, delay, logicswitch){
this.RSS_id=RSS_id
this.cachetime=cachetime
this.tickerid=divId
this.delay=delay
this.logicswitch=(typeof logicswitch!="undefined")? logicswitch : ""
this.mouseoverBol=0
this.pointer=0
this.opacitysetting=0.2
this.title=[], this.link=[], this.description=[], this.pubdate=[]
this.ajaxobj=createAjaxObj()
document.write('<div id="'+divId+'" class="'+divClass+'" >Initializing ticker...</div>')
if (window.getComputedStyle)
this.mozopacityisdefined=(window.getComputedStyle(document.getElementById(this.tickerid), "").getPropertyValue("-moz-opacity")==1)? 0 : 1
this.getAjaxcontent()
}

rssticker_ajax.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', lastrssbridgeurl+"?"+parameters, true)
this.ajaxobj.send(null)
}
}

rssticker_ajax.prototype.initialize=function(){ 
if (this.ajaxobj.readyState == 4){
if (this.ajaxobj.status==200){
var xmldata=this.ajaxobj.responseXML
if(xmldata.getElementsByTagName("item").length==0){
document.getElementById(this.tickerid).innerHTML="<b>Error</b> fetching remote RSS feed!<br />"+this.ajaxobj.responseText
return
}
var instanceOfTicker=this
this.feeditems=xmldata.getElementsByTagName("item")

for (var i=0; i<this.feeditems.length; i++){
this.title[i]=this.feeditems[i].getElementsByTagName("title")[0].firstChild.nodeValue
this.link[i]=this.feeditems[i].getElementsByTagName("link")[0].firstChild.nodeValue
this.description[i]=this.feeditems[i].getElementsByTagName("description")[0].firstChild.nodeValue
this.pubdate[i]=this.feeditems[i].getElementsByTagName("pubDate")[0].firstChild.nodeValue
}
document.getElementById(this.tickerid).onmouseover=function(){instanceOfTicker.mouseoverBol=1}
document.getElementById(this.tickerid).onmouseout=function(){instanceOfTicker.mouseoverBol=0}
this.rotatemsg()
}
}
}

rssticker_ajax.prototype.rotatemsg=function(){
var instanceOfTicker=this
if (this.mouseoverBol==1)
setTimeout(function(){instanceOfTicker.rotatemsg()}, 100)
else{
var tickerDiv=document.getElementById(this.tickerid)
var linktitle='<div class="rsstitle"><a href="'+this.link[this.pointer]+'" target="_blank">'+this.title[this.pointer]+'</a></div>'
var description='<div class="rssdescription">'+this.description[this.pointer]+'</div>'
var feeddate='<div class="rssdate">'+this.pubdate[this.pointer]+'</div>'
if (this.logicswitch.indexOf("description")==-1) description=""
if (this.logicswitch.indexOf("date")==-1) feeddate=""
var tickercontent=linktitle+feeddate+description
this.fadetransition("reset")
tickerDiv.innerHTML=tickercontent
this.fadetimer1=setInterval(function(){instanceOfTicker.fadetransition('up', 'fadetimer1')}, 100)
this.pointer=(this.pointer<this.feeditems.length-1)? this.pointer+1 : 0
setTimeout(function(){instanceOfTicker.rotatemsg()}, this.delay)
}
}

rssticker_ajax.prototype.fadetransition=function(fadetype, timerid){
var tickerDiv=document.getElementById(this.tickerid)
if (fadetype=="reset")
this.opacitysetting=0.2
if (tickerDiv.filters && tickerDiv.filters[0]){
if (typeof tickerDiv.filters[0].opacity=="number")
tickerDiv.filters[0].opacity=this.opacitysetting*100
else
tickerDiv.style.filter="alpha(opacity="+this.opacitysetting*100+")"
}
else if (typeof tickerDiv.style.MozOpacity!="undefined" && this.mozopacityisdefined){
tickerDiv.style.MozOpacity=this.opacitysetting
}
if (fadetype=="up")
this.opacitysetting+=0.2
if (fadetype=="up" && this.opacitysetting>=1)
clearInterval(this[timerid])
}
