function colorRows(id, rowColor1, rowColor2) {
  var tb = document.getElementById(id); //get Element associated with ID. Table or TBody
  if (! tb) { return; }
  var trs = tb.getElementsByTagName("tr"); //Get rows
  for (var i = 0; i < trs.length; i++) {   //Iterate through the rows
        var tds = trs[i].getElementsByTagName("td"); //Get columns
            for (var j = 0; j < tds.length; j++) //Iterate through the columns and set the appropriate color
                  (i % 2 == 0)? tds[j].style.backgroundColor = rowColor1 : tds[j].style.backgroundColor = rowColor2;
      }
}

window.onload = function() {
      colorRows("stripes","#FFF","#D3DFEE");
}