var tbls = document.getElementsByTagName('TABLE');
if(tbls){
	var l_tbl = tbls.length, i = 0;
	var trs, j, l_tr;
	for(; i < l_tbl; i++){
		trs = tbls[i].getElementsByTagName('TR');
		if(trs){
			l_tr = trs.length;
			for(j = 0; j < l_tr; j++){
				if(j % 2 == 0)
					trs[j].className = (trs[j].className == '' ? 'strip' : trs[j].className + ' strip');
			}
		}
	}
}