$(document).ready(function()
{
	var category = self.document.location.hash.substring(1);
	//slides the element with class "menu_body" when paragraph with class "menu_head" is clicked 
	$("#menu .menu_head").click(function()
    {
		$(this).toggleClass("menu_open").next("ul.menu_body").slideToggle(400).siblings("ul.menu_body").slideUp("slow");
       	$(this).siblings("h3").removeClass("menu_open");
	});
	
	$("h3[id=" + category+"]").click();
});