function activateMenu(mid){
$(" #"+mid+" ul ").css({display: "none"}); // Opera Fix
$(" #"+mid+" li").hover(function(){
		$(this).find('ul:first').css({visibility: "visible",display: "none"}).slideDown(300);
		},function(){
		$(this).find('ul:first').css({visibility: "hidden"});
		});
}