function mainmenu(){
$("#menu ul ul ").css({display: "none"}); // Opera Fix
$("#menu ul li.current_page_item ul ").css({display: "block"}); 
$("#menu ul li.current_page_parent ul ").css({display: "block"}); 

$("#menu ul li").hover(function(){
		$(this).find('ul:first').css({visibility: "visible",display: "block"}).show('100');
		},function(){
		$(this).find('ul:first').css({visibility: "hidden"});
		});

}

$("#menu ul li.current_page_item ul ").css({display: "block"}); 
$("#menu ul li.current_page_parent ul ").css({display: "block"}); 

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