function preload(imgObj,imgSrc) {
	if (document.images) {
		eval(imgObj+' = new Image()');
		eval(imgObj+'.src = "'+imgSrc+'"');
	}
}
function changeImage(layer,imgName,imgObj) {
	if (document.images) {
		if (document.layers && layer!=null) eval('document.images["'+imgName+'"].src = '+imgObj+'.src');
		else document.images[imgName].src = eval(imgObj+".src");
	}
}

	
	preload('logo','img/nav_logo.png');
	
	preload('aboutOff','img/nav_about.png');
	preload('aboutOn','img/nav_abouton.png');
	preload('releasesOff','img/nav_releases.png');
	preload('releasesOn','img/nav_releaseson.png');
	preload('shopOff','img/nav_shop.png');
	preload('shopOn','img/nav_shopon.png');
	preload('contactOff','img/nav_contact.png');
	preload('contactOn','img/nav_contacton.png');
	
	preload('newrelease2Off','img/nav_gs.png');
	preload('newrelease2On','img/nav_gson.png');
	preload('newrelease1Off','img/nav_sats.png');
	preload('newrelease1On','img/nav_satson.png');