function mainmenu(){
$(" #NavMain ul ").css({display: "none"}); // Opera Browser Fix - reference: Josh Baker's JS Site
$(" #NavMain li").hover(function(){
		$(this).find('ul:first').css({visibility: "visible",display: "none"}).show(25);
		},function(){
		$(this).find('ul:first').css({visibility: "hidden"});
		});
}
 $(document).ready(function(){mainmenu();});