The HTML and Javascript on this page have been released into the public domain with the following caveats: The sample images on this page have rights that may be claimed by their individual owners (don't use them!). The findPos function is a third party function from quirksmode (http://www.quirksmode.org/js/findpos.html ) and while his copyright and code philosophy mostly mirrors mine, you might want to check out the quirksmode Copyright Page if you plan to use the function commercially or plan to redestribute it in other works.