var xmlhttp;

Array.prototype.compareArrays = function(arr) {
    if (this.length != arr.length) return false;
    for (var i = 0; i < arr.length; i++) {
        if (this[i].compareArrays) { //likely nested array
            if (!this[i].compareArrays(arr[i])) return false;
            else continue;
        }
        if (this[i] != arr[i]) return false;
    }
    return true;
}

function setcontent()
{
if (xmlhttp.readyState==4)
  {// 4 = "loaded"
  if (xmlhttp.status==200)
    {// 200 = "OK"

	if (event_ticker.content[0] == '')
	    {
	pausecontent = xmlhttp.responseText.split("\n");
	event_ticker.content = pausecontent;
	

	for (i = 0; i < pausecontent.length && i < 2; i++)
	    {
		contentdiv = document.getElementById("event_ticker"+(i+1));


		contentdiv.innerHTML = pausecontent[i];
	    }
	if (!pausecontent.compareArrays(event_ticker.content))
	event_ticker.initialize();
	    }
	else
	    {
	pausecontent = xmlhttp.responseText.split("\n");
	event_ticker.content = pausecontent;

	    }
    }
  else
    {
    alert("Problem retrieving data:" + xmlhttp.statusText);
    }
  }
}

/***********************************************
* Pausing up-down scroller- © Dynamic Drive (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for this script and 100s more.
***********************************************/

function pausescroller(divClass, delay){
    this.content= new Array("",""); //message array content
    this.tickerid="event_ticker"; //ID of ticker div to display information
    this.delay=delay; //Delay between msg change, in miliseconds.
    this.mouseoverBol=0; //Boolean to indicate whether mouse is currently over scroller (and pause it if it is)
    this.hiddendivpointer=1; //index of message array for hidden div
    document.write('<div id="event_ticker" class="'+divClass+'" style="position: relative; overflow: hidden"><div class="innerDiv" style="position: absolute; width: 100%" id="event_ticker1"></div><div class="innerDiv" style="position: absolute; width: 100%; visibility: hidden" id="event_ticker2"></div></div>');

    var scrollerinstance=this;
    if (window.addEventListener) //run onload in DOM2 browsers
	window.addEventListener("load", function(){scrollerinstance.getcontent();scrollerinstance.initialize()}, false);
    else if (window.attachEvent) //run onload in IE5.5+
	window.attachEvent("onload", function(){ scrollerinstance.getcontent();scrollerinstance.initialize()});
    else if (document.getElementById) //if legacy DOM browsers, just start scroller after 0.5 sec
	setTimeout(function(){scrollerinstance.getcontent();scrollerinstance.initialize()}, 500);

}

// -------------------------------------------------------------------
// initialize()- Initialize scroller method.
// -Get div objects, set initial positions, start up down animation
// -------------------------------------------------------------------

pausescroller.prototype.initialize=function(){
    this.tickerdiv=document.getElementById(this.tickerid);
    this.visiblediv=document.getElementById(this.tickerid+"1");
    this.hiddendiv=document.getElementById(this.tickerid+"2");
    this.visibledivtop=parseInt(pausescroller.getCSSpadding(this.tickerdiv));
//set width of inner DIVs to outer DIV's width minus padding (padding assumed to be top padding x 2)
    this.visiblediv.style.width=this.hiddendiv.style.width=this.tickerdiv.offsetWidth-(this.visibledivtop*2)+"px";
    this.getinline(this.visiblediv, this.hiddendiv);
    this.hiddendiv.style.visibility="visible";
    var scrollerinstance=this;
    document.getElementById(this.tickerid).onmouseover=function(){scrollerinstance.mouseoverBol=1};
    document.getElementById(this.tickerid).onmouseout=function(){scrollerinstance.mouseoverBol=0};

    if (window.attachEvent) //Clean up loose references in IE
	window.attachEvent("onunload", function(){scrollerinstance.tickerdiv.onmouseover=scrollerinstance.tickerdiv.onmouseout=null});
    setTimeout(function(){scrollerinstance.animateup()}, this.delay);
}


// -------------------------------------------------------------------
// animateup()- Move the two inner divs of the scroller up and in sync
// -------------------------------------------------------------------

pausescroller.prototype.animateup=function(){
    var scrollerinstance=this;
    if (parseInt(this.hiddendiv.style.top)>(this.visibledivtop+5)){
	this.visiblediv.style.top=parseInt(this.visiblediv.style.top)-5+"px";
	this.hiddendiv.style.top=parseInt(this.hiddendiv.style.top)-5+"px";
	this.aniTimeout = setTimeout(function(){scrollerinstance.animateup()}, 50);
    }
    else{
	this.getinline(this.hiddendiv, this.visiblediv);
	this.swapdivs();
	setTimeout(function(){scrollerinstance.setmessage()}, this.delay);
    }
}

// -------------------------------------------------------------------
// swapdivs()- Swap between which is the visible and which is the hidden div
// -------------------------------------------------------------------

pausescroller.prototype.swapdivs=function(){
    var tempcontainer=this.visiblediv;
this.visiblediv=this.hiddendiv;
this.hiddendiv=tempcontainer;
}

pausescroller.prototype.getinline=function(div1, div2){
    div1.style.top=this.visibledivtop+"px";
    div2.style.top=Math.max(div1.parentNode.offsetHeight, div1.offsetHeight)+"px";
}

// -------------------------------------------------------------------
// setmessage()- Populate the hidden div with the next message before it's visible
// -------------------------------------------------------------------

pausescroller.prototype.setmessage=function(){
    var scrollerinstance=this;
if (this.mouseoverBol==1) //if mouse is currently over scoller, do nothing (pause it)
    setTimeout(function(){scrollerinstance.setmessage()}, 100);
else{
    var i=this.hiddendivpointer;
var ceiling=this.content.length;
this.hiddendivpointer=(i+1>ceiling-1)? 0 : i+1;
this.hiddendiv.innerHTML=this.content[this.hiddendivpointer];
this.animateup();
}
}

pausescroller.getCSSpadding=function(tickerobj){ //get CSS padding value, if any
if (tickerobj.currentStyle)
    return tickerobj.currentStyle["paddingTop"];
else if (window.getComputedStyle) //if DOM2
    return window.getComputedStyle(tickerobj, "").getPropertyValue("padding-top");
else
    return 0;
}



pausescroller.prototype.getcontent=function(){

  var scrollerinstance = this;

xmlhttp=null;
if (window.XMLHttpRequest)
  {// code for Firefox, Opera, IE7, etc.
  xmlhttp=new XMLHttpRequest();
  }
else if (window.ActiveXObject)
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
if (xmlhttp!=null)
    {
  xmlhttp.onreadystatechange=setcontent;
  xmlhttp.open("GET","http://www.publicspeaking.ie/events/tickertext.php",true);
  xmlhttp.send(null);
  setTimeout(function(){scrollerinstance.getcontent()}, 1000);
  }
else
  {
  alert("Your browser does not support XMLHTTP.");
  }


}