var hide_timer = null;
function show_submenu(elem, popup_name){
	var popup = $("#"+popup_name);
	var pos = $(elem).offset();
	popup.css("left", pos.left+13);
	popup.css("top", pos.top+13);
	$(".popup_menu").not("#"+popup_name).hide();
	popup.toggle();

	if(window.event) window.event.returnValue = false;
	return false;
}

function hide_submenu(popup_name){
	hide_timer = window.setTimeout("$('#"+popup_name+"').hide()", 500);
}