d=document;start=false
function preload(imgSrc){
	if (d.images){imgObj=imgSrc.substring(imgSrc.lastIndexOf('/')+1,imgSrc.lastIndexOf('.'));eval(imgObj+' = new Image()');	eval(imgObj+'.src = "'+imgSrc+'"')}
}
function changeImage(imgName,imgObj,layer) {
	if (d.images&&start){(d.layers && layer)?eval('d.'+layer+'.d.images["'+imgName+'"].src = '+imgObj+'.src'): d.images[imgName].src = eval(imgObj+".src")}
}