Trying to cut down on form spam

Hi All, I have a 2 page form page 1 = form page 2 = action page (updates database and sends email) So, I am getting a lot of spam. Owner wants very little error checking for maximum input for possible business.. So to cut down on spam I added a simple captcha I made - very easy to read with 4 numbers to add to a field and gen_validatorv4.js helps to make sure it is filled out correctly or the form won't submit spam get to be way less... then I added an http referrer field to show where it came from.... HOWEVER - one kind of spam comes through no matter what I do in the 2 new fields I added (captcha text and referrer) are just more random text entrees .... - also changed url for the action page - more spam again within minutes (seems like it would take spammers time to learn this...?) it's kind of like spammers are filling out the form - page 1 from some other location and possibly submitting from some other location also? Q: How do I stop this form spam? -- Thanks, Dave - DealTek dealtek@gmail.com [db-14]