function striping() {
	var schedule = document.getElementById('schedule');
	if (schedule) {
		var table = schedule.getElementsByTagName('table');
		if (table) {
			for (var i = 0; i < table.length; i++) {
				var tr = table[i].getElementsByTagName('tr');
				for (var j = 0; j < tr.length; j++) {
					if (j % 2 == 0) tr[j].className += ' stripe';
				}
			}
		}

	}
}