function mainmenu(){
$(" .sidebar ul ").css({display: "none"}); // Opera Fix
$(" .sidebar li").hover(function(){
		$(this).find('ul:first').css({visibility: "visible",display: "none"}).fadeIn('slow');
		},function(){
		$(this).find('ul:first').css({visibility: "hidden"});
		});
}

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