Captcha Programmed Into Form Code

I have several form codes from a program called Infusion CRM. Unfortunately they do not provide a captcha or graphic challenge element to their forms. However we can hard code this into their form code. I am a webmaster with no programming skills. I have a client that has a form that is being spammed about 50 times per day. We need to get some sort of captcha programmed into his forms codes. The trick is that our hosting company does not allow basic files types like php, asp.net, etc. We can use javascript though. You can see an example of the captcha form using coding we CAN use on this page: [login to view URL] I can provide the form coding if you can provide a generic script that will stop people from spamming our forms. The script should be able to work on all forms we create using the same layout as the one I will provide for you. ## Deliverables Any code you provide must be put into the actual body of the page or in the head section.