Image Verification

[peiceonly]

Actually I'm bit confused whether to post this here or JSP.
Anyway I have an issue . I need an image verification like those found in yahoo and ebay or some other sites. Can somebody has tried in JSP /Servlets ? I have seen examples from PHP . The link I got for the JSP is not working .
Can somebody help me out ?

[levent]

You will need to use standard Java API to generate the validation image. Then you will show that image to the user for validation. And since you know what you wrote to the image, you can verify it easily!

And check these tips to see which API calls you will use basically..