var l = jQuery.noConflict();

function mainmenu(){
l(" #nav ul ").css({display: "none"}); // Opera Fix
l(" #nav li").hover(function(){
		l(this).find('ul:first').css({visibility: "visible",display: "none"}).show(50);
		},function(){
		l(this).find('ul:first').css({visibility: "hidden"});
		});
}

 
 
 l(document).ready(function(){					
	mainmenu();
});