Thanks Paul.Could you just clarify the bit about 500 users.  If each user is saving the form and using it over and over (submitting it everytime they have a new enquiry) does this count as one user, or is it everytime they submit the form?i.e. can 500 people use this form (with the save option) over...

Thanks Paul!I realised I didn't have the script under 'Initialize'.  It works now - thank you.