if (document.images) {
var img1 = new Image();
img1.src = "images/hover_item.gif";
var img2 = new Image();
img2.src = "images/hover_about.gif";
var img3 = new Image();
img3.src = "images/hover_info.gif";
var img4 = new Image();
img4.src = "images/hover_inquirty.gif";
}
function chg(e, f) {
e.src = f;
}