Add additional required fields in PHP form...?

I wrote on here a couple of days ago about how to validate a PHP form I was working on.

I found that the method I was using was not the best option so I have moved on to a new script.

The form I have now looks the way I want it to, send the information to email correctly, and validates.

Now, I am trying to figure out how to edit the PHP sendform file to require that additional fields are filled in.

The form is located at http://www.mosaleen.com/contact.html and the PHP script for the formmail file is below.

I would like the script to require the name and message to be filled out. How would I edit the formmail script to make this happen? Currently it only routes to the error.html page if the email field is left empty.

Thanks in advance!!!

Andrea

<?php

$EmailFrom = Trim(stripslashes($_POST['email']));
$EmailTo = "svanhoose57@hotmail.com";
$Subject = "Comments from MoSaleen";
$name = Trim(stripslashes($_POST['name']));
$email = Trim(stripslashes($_POST['email']));
$phone = Trim(stripslashes($_POST['phone']));
$message = Trim(stripslashes($_POST['message']));

// validation
$validationOK=true;
if (Trim($EmailFrom)=="") $validationOK=false;
if (!$validationOK) {
  print "<meta http-equiv=\"refresh\" content=\"0;URL=error.html\">";
  exit;
}

// prepare email body text
$Body = "";
$Body .= "name: ";
$Body .= $name;
$Body .= "\n";
$Body .= "email: ";
$Body .= $email;
$Body .= "\n";
$Body .= "phone: ";
$Body .= $phone;
$Body .= "\n";
$Body .= "message: ";
$Body .= $message;
$Body .= "\n";

// send email
$success = mail($EmailTo, $Subject, $Body, "From: <$email>");

// redirect to success page
if ($success){
  print "<meta http-equiv=\"refresh\" content=\"0;URL=thankyou_email.html\">";
}
else{
  print "<meta http-equiv=\"refresh\" content=\"0;URL=error.html\">";
}
?>