function mainmenu(){
//$(" #nav ul ").css({display: "none"}); // Opera Fix
$(" #nav1 li").hover(function(){
		//$(this).find('ul:first').css({visibility: "visible",display: "none"}).slideDown(400);
		$(this).find('ul:first').css({opacity:0, visibility: "visible"}).animate({opacity:0.9},200);
		},function(){
		$(this).find('ul:first').css({visibility: "hidden"});
		});
		
$(" #nav2 li").hover(function(){
		//$(this).find('ul:first').css({visibility: "visible",display: "none"}).slideDown(400);
		$(this).find('ul:first').css({opacity:0, visibility: "visible"}).animate({opacity:0.9},200);
		},function(){
		$(this).find('ul:first').css({visibility: "hidden"});
		});

}

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