if (__moo_extend_js == undefined) {

	var __moo_extend_js = true;

	Element.implement({
		show: function(method) {
			var viewMethod = $pick(method, 'block');
			this.setStyle('display', viewMethod);
		},

		hide: function() {
			this.setStyle('display', 'none');
		},

		toggle: function(method) {
			var current = this.getStyle('display');
			if (current == 'inline' || current == 'block') this.hide();
			else this.show(method);
		}
	});
}