function checkEmail(form) {
addr1 = form.email_address_1.value;
addr2 = form.email_address_2.value;

if (addr1 != addr2) {
alert ("\nYou did not enter the same email address in both fields. Please check and make sure you give the correct email address or we won't be able to reply to your enquiry.")
return false;
}
else return true;
}