function stripe(id) {
   var even = false;
   var evenColor = arguments[1] ? arguments[1] : "#9FC3F0";
   var oddColor = arguments[2] ? arguments[2] : "#fff";
   var table = document.getElementById(id);
    if (! table) { return; }
    var tbodies = table.getElementsByTagName("tbody");
    for (var h = 0; h < tbodies.length; h++) {
      var trs = tbodies[h].getElementsByTagName("tr");
      for (var i = 0; i < trs.length; i++) {
        if (! trs[i].style.backgroundColor) {
          var tds = trs[i].getElementsByTagName("td");
          for (var j = 0; j < tds.length; j++) {       
            var mytd = tds[j];
            if (! mytd.style.backgroundColor) {
              mytd.style.backgroundColor =  even ? evenColor : oddColor;
            }
          }
        }
        even =  ! even;
      }
    }
  }