Stop Spam on Form (Captcha or something similar)

This form.... <[login to view URL]> needs to be put on a newly designed web page (we have a test link we can send you)? and we need to install Captcha or something else that prevents the form from getting spammed. We have new web pages created but we just didn't do that page yet. So the person we hire will need to copy the code from this form, add it to a different web page, and install something to prevent spam. We would prefer to accept a bid from someone who can work on it as soon as possible. Please include the timeframe that you think you can finish this project in. Thanks for your time.