// JavaScript Document
<!--
document.write('<style type="text/css">')
document.write("#screen	{filter:Alpha(Opacity=30);}")
document.write("</style>")

var master = new Object("element")
master.curLeft = -135;	master.curTop = 10;
master.gapLeft = 0;		master.gapTop = 0;
master.timer = null;


function moveAlong(layerName, paceLeft, paceTop, fromLeft, fromTop)
{
	clearTimeout(eval(layerName).timer)
	
	if(eval(layerName).curLeft != fromLeft)
	{
		if((Math.max(eval(layerName).curLeft, fromLeft) - Math.min(eval(layerName).curLeft, fromLeft)) < paceLeft)
		{
		 	eval(layerName).curLeft = fromLeft;
		}
		else if(eval(layerName).curLeft < fromLeft)
		{
			eval(layerName).curLeft = eval(layerName).curLeft + paceLeft;
		}
		else if(eval(layerName).curLeft > fromLeft)
		{
			eval(layerName).curLeft = eval(layerName).curLeft - paceLeft
		}
		document.getElementById(layerName).style.left = eval(layerName).curLeft;
	}
	
	if(eval(layerName).curTop != fromTop)
	{
		if((Math.max(eval(layerName).curTop, fromTop) - Math.min(eval(layerName).curTop, fromTop)) < paceTop)
		{
			eval(layerName).curTop = fromTop;
		}
		else if(eval(layerName).curTop < fromTop)
		{
			eval(layerName).curTop = eval(layerName).curTop + paceTop;
		}
		else if(eval(layerName).curTop > fromTop)
		{
			eval(layerName).curTop = eval(layerName).curTop - paceTop;
		}
		
		document.all[layerName].style.top = eval(layerName).curTop;

	}
	
	
	eval(layerName).timer=setTimeout('moveAlong("'+layerName+'",'+paceLeft+','+paceTop+','+fromLeft+','+fromTop+')',30)
}



function setPace(layerName, fromLeft, fromTop, motionSpeed){
eval(layerName).gapLeft = (Math.max(eval(layerName).curLeft, fromLeft) - Math.min(eval(layerName).curLeft, fromLeft))/motionSpeed
eval(layerName).gapTop = (Math.max(eval(layerName).curTop, fromTop) - Math.min(eval(layerName).curTop, fromTop))/motionSpeed

moveAlong(layerName, eval(layerName).gapLeft, eval(layerName).gapTop, fromLeft, fromTop)
}





var expandState = 0

function expand(){
if(expandState == 0)
{
	setPace("master", 0, 10, 10); 
	document.menutop.src = "http://www.umich.edu/~irwg/images/menub.gif";
	expandState = 1;
}
else
{
	setPace("master", -135, 10, 10); 
	document.menutop.src = "http://www.umich.edu/~irwg/images/menu.gif";
	expandState = 0;
}
}






//-->