﻿
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
	    document.write('<div id="'+divId+'" class="'+divClass+'" style="position:relative;overflow:hidden;height:100px;text-align:justify;"><div class="innerDiv" style="position: absolute;text-align:left" id="'+divId+'1">'+content[0]+'</div><br><div class="innerDiv" style="position: absolute;visibility: hidden;text-align:left" id="'+divId+'2">'+content[1]+'</div></div>')
	    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()}, 1000)
    }
	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)
	}
		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"
				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
		}
		/////////////Scroll Code end////////////////