Another frequently asked question (FAQ) has been added to the How to Add a CAPTCHA Test to Your Feedback Form Script: Reducing Spam in Your Contact Form tutorial. This one deals with the error message from ReCAPTCHA about using the "JavaScript free version of reCAPTCHA" in a browser that has JavaScript. Note: if you do not already have a contact form on your website with CAPTCHA support to filter out spam, read that article for an easy way to do this.