function showoption(theTable)
{
     obj = document.getElementsByTagName('table');
      for (i=0; i<obj.length; i++)
     {
          if (obj[i].id == theTable)
          obj[i].style.display = 'block';
     }
}
//-->

<!--
function hideoption(theTable)
{
     obj = document.getElementsByTagName('table');
      for (i=0; i<obj.length; i++)
     {
          if (obj[i].id == theTable)
          obj[i].style.display = 'none';
     }
}