var image_dir = "/css/";

var image_list = [
	"li-ioncube-hover.png",
	"li-jpgraph-hover.png",
	"li-ioncube-hover.png",
	"li-magazine-hover.png",
	"li-mapserver-hover.png",
	"rss-button-hover.png"
];

var pre = [];
for (var i = 0; i < image_list.length; i++) {
	pre[i] = new Image();
	pre[i].src = image_dir  + image_list[i];
}