var stripe = function()
{
  var tables = document.getElementsByTagName("table");
  for(var x=0;x!=tables.length;x++)
  {
    var table = tables[x];
    if (! table) { return; }
    if (table.className.indexOf('zebra') != -1 )
    {
      even = true;
      trs = table.getElementsByTagName("tr");  
      for (var i = 0; i < trs.length; i++)
      {		  
        if(even)
        {
          trs[i].className += " even";
        }
        else
        {
          trs[i].className += " odd";
        }
        even = !even;
      }
    }
  }
}