function setCells( td, color ) {
	var cell  = td.cellIndex;
	var row = td.parentNode || td.parentElement;
	var table = row.parentNode || row.parentElement; //tbody
	var tn = table.tagName.toLowerCase();
	while (tn != 'table' && tn != 'html') {
		table = table.parentNode || table.parentElement;
		tn = table.tagName.toLowerCase();
	}

	if (!table) return;

	for (var i = 1; i < table.rows.length; i++) {
		if (typeof(table.rows[i].cells[cell]) == 'object') {
			table.rows[i].cells[cell].style.backgroundColor = color;
		}
	}
}