(function($){


	//cache nav
	var nav = $("#main_nav");


	$(document).ready(function() {

		//add indicator and hovers to submenu parents
		nav.find("li").each(function()
		{
			if ($(this).find("ul").length > 0)
			{
				//show subnav on hover
				$(this).mouseenter(function()
				{
					$(this).find("ul").show();
					$(this).find("a").addClass("sub-nav-open");
				});

				//hide submenus on exit
				$(this).mouseleave(function()
				{
					$(this).find("ul").hide();
					$(this).find("a").removeClass("sub-nav-open");
				});
			}
		});

	});


})(jQuery);