$(document).ready(function(){
	if ($("ul#mainNav li").hasClass("sn1")) {

		$("ul#mainNav li.page_item").hover(function(){
			$("ul#mainNav li.sn1").find("ul:first").stop().css({visibility: "hidden"});
			$(this).find('ul:first').css({display: "block", visibility: "visible"}).fadeTo('fast', 1);
			},function(){
				$("ul#mainNav li.sn1").find("ul:first").stop().css({display: "block", visibility: "visible"});
				$(this).find("ul:first").stop().css({visibility: "hidden"}).fadeTo('fast', 0);
			}); 
			
		$("ul#mainNav li.sn1").hover(function(){
			$(this).find("ul:first").stop().css({display: "block", visibility: "visible"}).fadeTo('fast', 1);
				},function(){
					$(this).find("ul:first").stop().css({display: "block", visibility: "visible"});
			});
	
	} else {
		
		$("ul#mainNav li").hover(function(){
			$(this).find('ul:first').stop().css({display: "block", visibility: "visible"}).fadeTo('fast', 1);
				},function(){
					$(this).find('ul:first').stop().css({visibility: "hidden"}).fadeTo('fast', 0);
			});
	}
});