add spam deterrent to TMAIL form

I have a [login to view URL] script that is now getting spammed. Fields are filled with crap and the form is sent to us a recipiemts. I need a simpe way to stop this happening.. maybe add a field where one has to put in a certain word before it can be sent. TMAIL has these files... [login to view URL] [login to view URL] [login to view URL] Once I get this fixed I need the informatioon to fix it on other scripts I have using TMAIL. ## Deliverables I will need all new files with clear instructions so I can use them other other forms which need changing.