Submenu displaying in jquery

[Rhilliodo]

Here is the testing site link.I encountered the problem that displaying the sub-menu linkIn that navigation bar "why stockholm " when I hover it ,displayed the submenu also and when i hover the submenu its working normal wat i am doing wrong anyone much appreciated..\[code\](function($){ //cache nav var nav = $("#topNav"); //add indicator and hovers to submenu parents nav.find("li").each(function() { if ($(this).find("ul").length > 0) { $("<span>").text("").appendTo($(this).children(":first")); //show subnav on hover $(this).mouseenter(function() { $(this).find("ul").stop(true, true).slideDown(); }); //hide submenus on exit $(this).mouseleave(function() { $(this).find("ul").stop(true, true).slideUp(); }); } });})(jQuery);\[/code\]