function testTelNumber (field) {
				  var myTelNo = document.getElementById(field).value;
				  // If invalid number, report back error
				  if (!checkUKTelephone (myTelNo)) {
				     alert (telNumberErrors[telNumberErrorNo]);
				     return false;
				  }
				  // Otherwise redisplay telephone number on form in corrected format
				  else {
				     document.getElementById(field).value =  checkUKTelephone (myTelNo);

				  }
				}

function requestNewsletterValidation() {

           

            
            
           if (document.getElementById("newsletter_name").value == "") {

                        alert("Please type in your full name");

                        return false;

            }


                 


            if (document.getElementById("newsletter_email").value == "") {

                        alert("Please type in your email address");

                        return false;

            }


				if(!(/\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(document.getElementById("newsletter_email").value))) {

								alert("invalid email");

								return false;

				}


            
            
            
            

            return true;
}