var J$=jQuery.noConflict();
function mainmenu(){
J$(" #nav ul ").css({display: "none"}); // Opera Fix
J$(" #nav li").hover(function(){
		J$(this).find('ul:first').css({visibility: "visible",display: "none"}).show(400);
		},function(){
		J$(this).find('ul:first').css({visibility: "hidden"});
		});
}

 
 
 J$(document).ready(function(){					
	mainmenu();
});