$(document).ready(function()
{
	$("#firstpane li.menu_head").click(function()
    {
		$(this).css({backgroundImage:"none"}).next("li.menu_body").slideToggle(300).siblings("li.menu_body").slideUp("slow");
       	$(this).siblings().css({backgroundImage:"none"});
	});
	$("#secondpane li.menu_head").mouseover(function()
    {
	     $(this).css({backgroundImage:"none"}).next("li.menu_body").slideDown(500).siblings("li.menu_body").slideUp("slow");
         $(this).siblings().css({backgroundImage:"none"});
	});
});