function validate(thisForm) {
with (thisForm) {
var alertMessage = "Please specify:\n";

if (venue_title.value == "") alertMessage += "\nVenue Title";
if (times_and_dates.value == "") alertMessage += "\nTimes & Dates";
if (format.value == "") alertMessage += "\nFormat";
if (your_email.value == "") alertMessage += "\nYour Email";
if (address_1.value == "") alertMessage += "\nAddress";
if (town.value == "") alertMessage += "\nTown";
if (area.value == "") alertMessage += "\nRegion";
if (code.value == "") alertMessage += "\nSecurity Code";

if (alertMessage != "Please specify:\n") {
alert(alertMessage);
return false;
} else return true;
} }