var lastButtonChanged = null;
var class1 = "navButton";
var class2 = "navButtonAlt";
function MouseOverButton(btnObj) {    
	if(btnObj)
	{
    	if(btnObj.className==class1) btnObj.className = class2;    
	}
}
function MouseOutButton(btnObj) {
	if(btnObj)
	{
	    if(lastButtonChanged!=btnObj&&btnObj.className==class2) btnObj.className = class1;    
	}
}

function moveDiv(divMove, left, top)
{
	var a = document.getElementById(divMove);
	a.style.left = "50%"
	//a.style.top = 100
	var bblaleft = a.offsetLeft
	a.style.left = bblaleft - a.offsetWidth/2 + left
	var bblatop = a.offsetTop
	a.style.top = bblatop - a.offsetHeight/2 + top
}