//Preloading back button
if (document.images){
	var backOn = new Image(); 
	backOn.src = "images/backOn.gif";
	var backOf = new Image(); 
	backOf.src = "images/backOf.gif";
}

//-- Rollover Function for Back Button
function rollOn(name){
	if (document.images){
		eval("document.images['"+name+"'].src ="+name+"On.src");
	}
}

function rollOf(name){
	if (document.images){
		eval("document.images['"+name+"'].src ="+name+"Of.src");
	}
}