<!--
function checkform ( form )
{
  // see http://www.thesitewizard.com/archive/validation.shtml
  // for an explanation of this script and how to use it on your
  // own website

  // ** START **
  if (form.name.value == "") {
    alert( "Please enter your or your company name." );
    form.name.focus();
    return false ;
  }
  // ** END **
    // ** START **
  if (form.email.value == "") {
    alert( "Please enter your email address." );
    form.email.focus();
    return false ;
  }
  // ** END **
    // ** START **
  if (form.message.value == "") {
    alert( "Please enter a message." );
    form.message.focus();
    return false ;
  }
  // ** END **
    // ** START **
  if (form.spamcheck.value == "no" || !(form.spamcheck.value == "yes")) {
    alert( "You must enter the obvious answer." );
    form.spamcheck.focus();
    return false ;
  }
  // ** END **
  return true ;
}
//-->