function OnSubmitForm(src)
{
  // validate email (not just empty)
  if(src.contact_from_email.value == '' ||
     !(src.contact_from_email.value.indexOf(".") > 2 && src.contact_from_email.value.indexOf("@") > 0))
  {
    alert('Please enter a valid Email address.');
    src.contact_from_email.focus();
    if (src.contact_from_email.value != '')
    {
      src.contact_from_email.select();
    }
    return false;
  }