<!--
function checkform3 ( form )
{
  if (form.instructor.value == "") {
    alert( "Please enter your full name." );
    form.instructor.focus();
    return false ;
  }
  if (form.email.value == "") {
    alert( "Please enter your email address." );
    form.email.focus();
    return false ;
  }
  return true ;
}
//-->