function stripes_init() {
	var tables = document.getElementsByTagName('table');
	for(var x = tables.length - 1; x>=0; x--) {
		if(tables[x].className = 'nostripe')
			continue;
		var rows = tables[x].getElementsByTagName('tr');
		for(var i = 0, m=rows.length; i < m; i++) {
			if(i == 0)
				rows[i].className = 'header';
			else if((i %2) == 0)
				rows[i].className = 'alt';
		}
	}
}

stripes_init();