Is the a computer prank appllication or way of changing a website?

Is the a computer prank appllication or way of changing a website (already made by someone else:like yahoo.com) to say anything and have addictional pictures (for personal use). So let%26#039;s say I wanted one of the links on yahoo to say %26quot;Free porn%26quot; (as a joke), is there an application that lets me personally change that to whatever I want?|||yeah there is... of course, your *** will soon be busted and you will end up in jail (where ya belong). And they CAN track you down becuase the internet access leaves little cookie crumbs, Hansel, for the authorities to track you down.|||No. First off, that is illegal. Second of all, changing a site on yahoo is a huge feat. You have to hack their server to alter the code, thats not particularly easy. It would be easier if the site in question were run from someones personal dinky server, but still not as easy as downloading an application. Sorry, bud, your out of luck.