function showTaxID()
  {
   if (document.formElem.Covs.checked)
  	{
  	document.getElementById("visibleFields").style.visibility = "visible";
	document.formElem.Covs.focus()
  	}
   else 
  	{
  	document.getElementById("visibleFields").style.visibility = "hidden";
  	}
	return false;
  }