function subMenu(self) {
	parId = $(self).attr("parId");
	
	if ($(self).parents("li").next().css("display")=="none") {
		$("li[parId='"+parId+"']").show(500);
		$(self).next().attr("src","img/menu_point_arrow_down.gif");
	}else{
		$("li[parId='"+parId+"']").hide(500);
		$(self).next().attr("src","img/menu_point_arrow.gif");
	}
	
	return false;
}