/*  onMouseOver="chBg('id', 'class')" */

function chBg(id, newClass)
{
	if (!document.getElementById) return;
	
	var aElement = document.getElementById(id);
	aElement.className = newClass;
}

function chBg2(id1, id2, newClass1, newClass2)
{
	if (!document.getElementById) return;
	
	var aElement1 = document.getElementById(id1);
	var aElement2 = document.getElementById(id2);
	aElement1.className = newClass1;
	aElement2.className = newClass2;
}

function changeBgColor(id, color)
{
	if (!document.getElementById) return;
	
	var aElement = document.getElementById(id);
	aElement.style.background = color;
}