/***********************************************
* 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(content, divId, divClass, delay, direction){
	this.direction = direction;
	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
	this.separator = "&nbsp;-&nbsp;";
	document.write('<div id="'+divId+'" class="'+divClass+'" style="position: relative; overflow: hidden; white-space: nowrap; color: #FFFFFF;"><div class="innerDiv" style="position: absolute; " id="'+divId+'1"></div><div class="innerDiv" style="position: absolute; visibility: hidden" id="'+divId+'2"></div></div>')
	var scrollerinstance=this
	scrollerinstance.fillin();
	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)
}

pausescroller.prototype.fillin = function()
{
	var sContent = "";
	for(var i = 0; i < this.content.length; i++)
	{
		sContent += this.separator + '<div class="innerDiv" style="display: inline;" id="'+this.tickerid+"_"+i+'">'+this.content[i]+'</div>';
	}
	document.getElementById(this.tickerid+'1').innerHTML = sContent;
	document.getElementById(this.tickerid+'2').innerHTML = sContent;
}

// -------------------------------------------------------------------
// 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.getCSSToppadding(this.tickerdiv))
this.visibledivleft=parseInt(pausescroller.getCSSLeftpadding(this.tickerdiv))
//set width of inner DIVs to outer DIV's width minus padding (padding assumed to be top padding x 2)
if(this.direction != "H"){
	this.visiblediv.style.width=this.hiddendiv.style.width=this.tickerdiv.offsetWidth-(this.visibledivtop*2)+"px"
}
else{
	this.visiblediv.style.height=this.hiddendiv.style.height=this.tickerdiv.offsetHeight-(this.visibledivleft*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})
	
if(this.direction != "H")
	setTimeout(function(){scrollerinstance.animateup()}, this.delay)
else
	setTimeout(function(){scrollerinstance.animateleft()}, 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+3)){
		this.visiblediv.style.top=parseInt(this.visiblediv.style.top)-3+"px"
		this.hiddendiv.style.top=parseInt(this.hiddendiv.style.top)-3+"px"
		setTimeout(function(){scrollerinstance.animateup()}, 100)
	}
	else{
		this.getinline(this.hiddendiv, this.visiblediv)
		this.swapdivs()
		setTimeout(function(){scrollerinstance.setmessage()}, this.delay)
	}
}

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

pausescroller.prototype.animateleft=function(){
var scrollerinstance=this

	if(scrollerinstance.mouseoverBol != 1){
		if (parseInt(this.hiddendiv.style.left)>(this.visibledivleft+3)){
			this.visiblediv.style.left=parseInt(this.visiblediv.style.left)-3+"px"
			this.hiddendiv.style.left=parseInt(this.hiddendiv.style.left)-3+"px"
		}
		else{
			this.getinline(this.hiddendiv, this.visiblediv)
			this.swapdivs()
		}
		setTimeout(function(){scrollerinstance.animateleft()}, 100)
	}
	else{
		setTimeout(function(){scrollerinstance.animateleft()}, 100)
	}
}

// -------------------------------------------------------------------
// 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){
	
if(this.direction != "H"){
	div1.style.top=this.visibledivtop+"px";
	div2.style.top=Math.max(div1.parentNode.offsetHeight, div1.offsetHeight)+"px";
}
else{
	div1.style.left=this.visibledivleft+"px";
	div2.style.left=div1.offsetWidth+"px";
	//div2.style.left=Math.max(div1.parentNode.offsetWidth, div1.offsetWidth)+"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= scrollerinstance.fillin();//this.content[this.hiddendivpointer]
if(this.direction != "H")
	this.animateup()
else
	this.animateleft()
}
}

pausescroller.getCSSToppadding=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.getCSSLeftpadding=function(tickerobj){ //get CSS padding value, if any
if (tickerobj.currentStyle)
	return tickerobj.currentStyle["paddingLeft"]
else 
	if (window.getComputedStyle) //if DOM2
		return window.getComputedStyle(tickerobj, "").getPropertyValue("padding-left")
	else
		return 0
}
