function doMouseOver(mainElement,imageName)
{
	var main = document.getElementById(mainElement);
	var els = document.getElementById(mainElement).getElementsByTagName("a");
	var link = els[0];
	
	link.style.backgroundImage="url(/images/"+imageName+")";
}

function doMouseOut(mainElement,imageName)
{
	var main = document.getElementById(mainElement);
	var els = document.getElementById(mainElement).getElementsByTagName("a");
	var link = els[0];
	link.style.backgroundImage="url(/images/"+imageName+")";
	//link.style.backgroundImage=null;
}