// JScript File

function pausescroller(content, divId, divClass, delay){
this.content=content //message array content
this.tickerid=divId //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

// set the contents of the container div
var _divTicker = "";
var _contentLength = this.content.length;
var _topStyle = "";
var _top = 5;
var i = 0;
_divTicker = '<div id="'+divId+'" class="'+divClass+'" style="position: relative; overflow: hidden">';
for(i = 0; i < _contentLength && i < 4; i++)
{
    _divTicker = _divTicker + '<div style="position: absolute; width: 100%;' + _topStyle + '" id="'+divId+(i+1)+'">'+content[i]+'</div>';
    _top = _top + 84;
    _topStyle = " top: " + _top + "px;";
}
_divTicker = _divTicker + '</div>';
document.getElementById("divTicker").innerHTML = _divTicker;
// ticker not required for items less than 4
if (_contentLength < 4)
{
    return;
}
var scrollerinstance=this
if (window.addEventListener) //run onload in DOM2 browsers
window.addEventListener("load", function(){scrollerinstance.initialize()}, false)
else if (window.attachEvent) //run onload in IE5.5+
window.attachEvent("onload", function(){scrollerinstance.initialize()})
else if (document.getElementById) //if legacy DOM browsers, just start scroller after 0.5 sec
setTimeout(function(){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.firstdiv=document.getElementById(this.tickerid+"1")
this.seconddiv=document.getElementById(this.tickerid+"2")
this.thirddiv=document.getElementById(this.tickerid+"3")
this.fourthdiv=document.getElementById(this.tickerid+"4")
this.visibledivtop=parseInt(pausescroller.getCSSpadding(this.tickerdiv))
// sets the top of divs
this.getinline(this.firstdiv, this.seconddiv, this.thirddiv, this.fourthdiv)

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.seconddiv.style.top)>(this.visibledivtop+5)){
this.firstdiv.style.top=parseInt(this.firstdiv.style.top)-5+"px"
this.seconddiv.style.top=parseInt(this.seconddiv.style.top)-5+"px"
this.thirddiv.style.top=parseInt(this.thirddiv.style.top)-5+"px"
this.fourthdiv.style.top=parseInt(this.fourthdiv.style.top)-5+"px"
setTimeout(function(){scrollerinstance.animateup()}, 50)
}
else{
this.getinline(this.seconddiv, this.thirddiv, this.fourthdiv, this.firstdiv)
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.firstdiv
this.firstdiv=this.seconddiv
this.seconddiv=this.thirddiv
this.thirddiv=this.fourthdiv
this.fourthdiv=tempcontainer
}

pausescroller.prototype.getinline=function(div1, div2, div3, div4){
div1.style.top=this.visibledivtop + "px";
div2.style.top=(this.visibledivtop + 84) + "px";
div3.style.top=(this.visibledivtop + 84 + 84) + "px";
div4.style.top=(this.visibledivtop + 84 + 84 + 84) + "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

if(this.hiddendivpointer <= ceiling - 3)
{
    this.fourthdiv.innerHTML=this.content[this.hiddendivpointer + 2]
}
else if(this.hiddendivpointer == ceiling - 1)
{
    this.fourthdiv.innerHTML=this.content[1]
}
else
{
    this.fourthdiv.innerHTML=this.content[0]
}

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
}