/***********************************************
* 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){
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+'" style="height: 150px; width: 130px; position: relative; overflow: hidden"><div style="position: absolute; width: 100%" id="'+divId+'1">'+content[0]+'</div><div style="position: absolute; width: 100%; visibility: hidden" id="'+divId+'2">'+content[1]+'</div></div>')
var scrollerinstance=this
if (window.addEventListener) 
{//run onload in DOM2 browsers (Mozilla)
window.addEventListener("load", function(){scrollerinstance.initialize()}, false)
//alert('addEventListener');
}
else if (window.attachEvent) 
{//run onload in IE5.5+
window.attachEvent("onload", function(){scrollerinstance.initialize()})
//alert('attachEvent');
}
else if (document.getElementById) 
{//if legacy DOM browsers, just start scroller after 0.5 sec
setTimeout(function(){scrollerinstance.initialize()}, 500)
//alert('getElementById');
}
}

// -------------------------------------------------------------------
// 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")
//set width of inner DIVs to outer DIV's width minus padding (padding assumed to be top padding x 2)
//alert(this.visiblediv.style.width);
this.visiblediv.style.width=this.hiddendiv.style.width=this.tickerdiv.offsetWidth+"px"
//alert(this.tickerdiv.offsetWidth);
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
//alert("VISIBLE:"+this.visiblediv.innerHTML+":top:"+this.visiblediv.style.top);
//alert("HIDDEN:"+this.hiddendiv.innerHTML+":top:"+this.hiddendiv.style.top);
//alert(parseInt(this.hiddendiv.style.left));
if (parseInt(this.hiddendiv.style.left)>(0)){
this.visiblediv.style.left=parseInt(this.visiblediv.style.left)-5+"px"
this.hiddendiv.style.left=parseInt(this.hiddendiv.style.left)-5+"px"
setTimeout(function(){scrollerinstance.animateup()}, 50)
//alert('A');
}
else{
this.getinline(this.hiddendiv, this.visiblediv)
this.swapdivs()
setTimeout(function(){scrollerinstance.setmessage()}, this.delay)
//alert('B');
}

}

// -------------------------------------------------------------------
// 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){
	//alert(div1.parentNode.offsetWidth+":"+div1.offsetWidth);
div1.style.left="0px"
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=this.content[this.hiddendivpointer]
this.animateup()
}
}