window.addEvent('domready', function() {

	var count = 0;
	$$('table.contenttable tr').each(function(el) {
		el.addClass(count++ % 2 == 0 ? 'even' : 'odd');
	});

	$$('table.contenttable tbody tr').each(function(el) {
			el.getFirst().addClass('first');
	});

	$$('table.contenttable thead tr').each(function(el) {
			el.getFirst().addClass('first');
	});


});