feedback wanted on CAPTCHA system

Hi: A few weeks ago I committed code that can be used for generating CAPTCHAs for pearweb. It can then be extrapolated for use on the other php.net sites. The source of the image generation is at: http://cvs.php.net/co.php/pearweb/public_html/captcha-image.php and the value generation is at the bottom of: http://cvs.php.net/co.php/pearweb/include/pear-format-html.php In order to allow testing before deployment, the code I posted doesn't generate images on the form pages yet. To see what the CAPTCHAs look like, go to this page to initialize a captcha session var: http://pear.php.net/bugs/bug.php?id=14&edit=3 Then view the image here: http://pear.php.net/captcha-help.php Once the system goes live, a link to the help page will be placed next to the the CAPTCHA input. I chose letters that are fuzzy so they would be harder to decipher via optical character recognition, which is a real problem for CAPTCHA systems. Of course, the fuzzyness makes it a bit harder for people to read too, but I feel the tradeoff is worth it. If the letters presented in a give CAPTCHA are REALLY too hard new rendering of the same letters is obtainable by refreshing the help page. Please let me know what you think. --Dan -- T H E A N A L Y S I S A N D S O L U T I O N S C O M P A N Y data intensive web and database programming http://www.AnalysisAndSolutions.com/ 4015 7th Ave #4, Brooklyn NY 11232 v: 718-854-0335 f: 718-854-0409