function createAjaxObj(){
	var httprequest=false
	if (window.XMLHttpRequest &&!window.ActiveXObject){
		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 ajax_ticker(xmlfile, divId, divClass, delay, fadeornot){
	this.xmlfile=xmlfile
	this.tickerid=divId
	var delay=(typeof delay=="number")? [delay] : delay
	this.delay=delay[0]
	this.refetchdelay=delay[1]
	this.mouseoverBol=0
	this.pointer=0
	this.opacitystring=(typeof fadeornot!="undefined")? "width: 100%; filter:progid:DXImageTransform.Microsoft.alpha(opacity=100); opacity: 1" : ""
	if (this.opacitystring!="") this.delay+=500
		this.opacitysetting=0.2
	this.messages=[]
	this.ajaxobj=createAjaxObj()
	document.write('<div id="'+divId+'" class="'+divClass+'"><div style="'+this.opacitystring+'">Initializing ticker...</div></div>')
	this.getXMLfile()
}
ajax_ticker.prototype.getXMLfile=function(){
	this.ajaxobj=createAjaxObj()
	if (this.ajaxobj){
		var instanceOfTicker=this
		var url=this.xmlfile+"?bustcache="+new Date().getTime()
		this.ajaxobj.onreadystatechange=function(){instanceOfTicker.initialize()}
		this.ajaxobj.open('GET', url, true)
		this.ajaxobj.send(null)
	}
}
ajax_ticker.prototype.initialize=function(){
	if (this.ajaxobj.readyState == 4){
		if (this.ajaxobj.status==200 || window.location.href.indexOf("http")==-1){
			this.contentdiv=document.getElementById(this.tickerid).firstChild
			var xmldata=this.ajaxobj.responseText
			this.contentdiv.style.display="none"
			this.contentdiv.innerHTML=xmldata
			if (this.contentdiv.getElementsByTagName("div").length==0){
				this.contentdiv.innerHTML="<b>Error</b> fetching remote ticker file!"
				return
			}
		var instanceOfTicker=this
		document.getElementById(this.tickerid).onmouseover=function(){instanceOfTicker.mouseoverBol=1}
		document.getElementById(this.tickerid).onmouseout=function(){instanceOfTicker.mouseoverBol=0}
		clearTimeout(this.fadetimer1)
		clearTimeout(this.pausetimer)
		clearTimeout(this.rotatetimer)
		this.mouseoverBol=0
		this.messages=[]
		for (var i=0; i<this.contentdiv.getElementsByTagName("div").length; i++){
			if (this.contentdiv.getElementsByTagName("div")[i].className=="message")
				this.messages[this.messages.length]=this.contentdiv.getElementsByTagName("div")[i].innerHTML
		}
		this.contentdiv.innerHTML=""
		this.contentdiv.style.display="block"
		this.rotatemsg()
		if (this.refetchdelay>5000)
			setTimeout(function(){instanceOfTicker.getXMLfile()}, this.refetchdelay)
		}
	}
}
ajax_ticker.prototype.rotatemsg=function(){
	var instanceOfTicker=this
	if (this.mouseoverBol==1)
		this.pausetimer=setTimeout(function(){instanceOfTicker.rotatemsg()}, 100)
	else{
		if (this.contentdiv.filters)
			this.contentdiv.style.filter="progid:DXImageTransform.Microsoft.alpha(opacity="+(this.opacitysetting*100)+")";
		this.fadetransition("reset")
		this.contentdiv.innerHTML=this.messages[this.pointer]
		this.fadetimer1=setInterval(function(){instanceOfTicker.fadetransition('up', 'fadetimer1')}, 100)
		this.pointer=(this.pointer<this.messages.length-1)? this.pointer+1 : 0
		this.rotatetimer=setTimeout(function(){instanceOfTicker.rotatemsg()}, this.delay)
	}
}
ajax_ticker.prototype.fadetransition=function(fadetype, timerid){
	var contentdiv=this.contentdiv
	if (fadetype=="reset")
		this.opacitysetting=0.2
	if (contentdiv.filters && contentdiv.filters[0]){
		if (typeof contentdiv.filters[0].opacity=="number")
			contentdiv.filters[0].opacity=this.opacitysetting*100
		else
			contentdiv.style.filter="alpha(opacity="+this.opacitysetting*100+")"
	}
	else if (contentdiv.style.opacity!="undefined"){
		contentdiv.style.opacity=this.opacitysetting
	}
	else
		this.opacitysetting=1
	if (fadetype=="up")
		this.opacitysetting+=0.1
	if (fadetype=="up" && this.opacitysetting>=1){
		if (contentdiv.style && contentdiv.style.removeAttribute)
			contentdiv.style.removeAttribute('filter')
		clearInterval(this[timerid])
	}
}