function checkform ( form )
{
  var email = form.email.value;
  // ** START **
  if (form.name.value == "") {
    alert( "Please enter your name." );
    form.name.focus();
    return false ;
  }
  // ** END **  
  // ** START **
  if (form.question.value == "") {
    alert( "Please enter your message." );
    form.question.focus();
    return false ;
  }
  // ** END ** 
  // ** START **
  if (form.Turing.value == "") {
    alert( "Enter the numbers you see in the box!" );
    form.Turing.focus();
    return false ;
  }
  // ** END ** 
  return true ;
}
/***********************************************
* Email Validation script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i

function checkmail(e){
var returnval=emailfilter.test(e.value)
if (returnval==false){
alert("Please enter a valid email address.")
e.select()
}
return returnval
}