// JavaScript Document
   function tableRows() {
    if (document.getElementsByTagName) {
     var tables = document.getElementsByTagName('table');
     for (var i = 0; i < tables.length; i++) {
      var trs = tables[i].getElementsByTagName('tr');
      for (var j = 1; j < trs.length; j+=2) {
       trs[j].className = 'alternate';
      }
     }
    }
   }