trasparent top-menu

is possible when i go over the top menu delete the white or the other color background?
thanks...

Background of what?

you can use script like this:

jQuery(document).reday(function(){
jQuery("#nav LI").hover(
function(){
//hover in
jQuery('BODY').css({
'backgorund':'transparent'
});
},
function(){
//hover out
jQuery('BODY').css({
'backgorund':'url(some image ....)'
});
});
});