An implantable penile prosthetic includes a pump attachable between a reservoir and a cylinder that is implantable into a corpora cavernosum of a penis. According to one aspect of the present invention, the URL of a document downloaded via a web browser client is compared to the URLs in a list of URLs for known spoof sites. In order to reliably fixate the metal frame net on a trunk bottom or trunk wall covering, the distance between the snap-in device and the annular shoulder corresponds approximately to the thickness of the trunk bottom or trunk wall covering on which the holding element is fixated by means of the snap-in element. Then, a second metal can further be isolated from the leachate. The output of the vector operation section is processed thereafter by white balance sections and a color interpolation section.