function getItemIndex(elm) {
		var parent = glow.dom.get(elm.parentNode),
			counter = 0;

		parent.children().each(function(){
			if (glow.dom.get(this).item(0) == glow.dom.get(elm).item(0)) {
				return counter;
			}
			else {
				counter++;
			}
		});
		return -1;
	}