<!-- 
buttons = new Array ()
function change (imagename , event)
{
	document[imagename].src = buttons[imagename + "-" + event].src
	return
}
function load(prefix, imagename)
{
	buttons[imagename + "-on"] = new Image();
	buttons[imagename + "-on"].src = prefix + imagename + "-on.gif"
	buttons[imagename + "-off"] = new Image();
	buttons[imagename + "-off"].src = prefix + imagename + "-off.gif"	
	return
}
load("buttons/", "home")
load("buttons/", "shop")
load("buttons/", "rewards")
load("buttons/", "help")
-->