<!--
function validate_form() {
  validity = true; // assume valid
  
  if (!check_email(document.registerform.REmail.value))
        { validity = false; alert('There may be an error in your e-mail address, it may be omitted or it may contain an error !'); }

  if (document.registerform.RSupervisorEmail.value != '' && !check_email(document.registerform.RSupervisorEmail.value))
	        { validity = false; alert('Please ensure your supervisors email address is correct'); }
					
  if (validity);
  return validity;
}

function check_empty(text) {
  return (text.length > 0); // returns false if empty
}

function checkchars(form) {

}

function check_email(address) {  if ((address == "")
    || (address.indexOf ('@') == -1)    || (address.indexOf ('.') == -1) || (address.indexOf (',') == 1) || (address.indexOf (';') == 1) || (address.indexOf ('/') == 1))
      return false;  return true;
}

// -->