function onMouseOverMenu(d, top) {
if(d.length < 1) { return; }
document.getElementById(d).style.background = "url(img/menu.gif) no-repeat -0px -"+top+"px";
}
function onMouseOutMenu(d) {
if(d.length < 1) { return; }
document.getElementById(d).style.background = "url(img/menu.gif) no-repeat";
}