var Submenu = {
	"show" : function(event) {
		var el = PythonEvent.element(event);
		if (el.tagName.toUpperCase() == 'DIV')
		{
			el.style.display = "block";
		}
	},
	"hide" : function(event) {
		if (PythonEvent.isMouseLeave(event))
		{
			var el = PythonEvent.element(event);
			if (el.tagName.toUpperCase() == 'DIV')
				el.style.display = "none";
		}
	}
}

var SubmenuRules = {
	"div.hover-menu" : function(element) {
		PythonEvent.observe(element, "mouseover", Submenu.show);
		PythonEvent.observe(element, "mouseout", Submenu.hide);
	}
}

Behaviour.register(SubmenuRules)