function getObjectStyle(obj) {
	if (document.layers) {
		if (typeof obj == "string") {
			return document.layers[obj];
		} else {
			return obj;
		}
	}
	if (document.all) {
		if (typeof obj == "string") {
			return document.all(obj).style;
		} else {
			return obj.style;
		}
	}
	if (document.getElementById) {
		if (typeof obj == "string") {
			return document.getElementById(obj).style;
		} else {
			return obj.style;
		}
	}
	return null;
}