>Hello Rob and everyone, > > Image captchas are undetectable by screen reading packages such as those >used by the blind and lock out legitimate visitors.
Very true, that's why from a 508 or WAI perspective Captchas cannot be made accessible. One alternative would be to create a random number, say between 0 and 9, then add 20 to it and store the result in a session variable. Then on your form page you have something like: What is [random value from earlier] plus twenty: _______ Then on the page that's receiving the form submission check the submitted value of the above field with the value in the session scope. If they're the same then the chances are you're dealing with a person. Otherwise most likely spam. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358386 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
