// batch validation request
function validateForm(form) {
   
    global_flag = 'safe';
   
    email_personal = isEMailAddr(form.email);
    first_name = isNotEmpty(form.first_name, true);
    last_name = isNotEmpty(form.last_name, true);
    telephone = isNumber(form.phone_number, true);
   
    event_date = isNotEmpty(form.event_date, true);
	event_type = isNotEmpty(form.event_type, true); 
	start = isNotEmpty(form.start, true); 
	finish = isNotEmpty(form.finish, true); 
	length = isNotEmpty(form.length, true); 
	preference = isNotEmpty(form.preference, true); 
	venue_name = isNotEmpty(form.venue_name, true);
	venue_location = isNotEmpty(form.venue_location, true);

   
    if(global_flag == 'safe') {
        return true;
    } else {
        alert('To process the form \n' + '* Please correct the highlighted fields \n');
        return false;
    }
   
}