Userscripts.org

The dutch online second-hand website marktplaats.nl has someting too :)

script type="text/javascript" src="http://statisch.marktplaats.com/js/copyprotect-min.js?20091019"> /script>

copyprotect-min.js
var copyrightMessage="Dutch message about copyright bleh..";function ProtectImg(A){A.galleryimg="no";A.ondragstart=function(){return false};A.onmousedown=function(B){if(B&&B.preventDefault){B.preventDefault()}if(document.all){if(event.button==2){alert(copyrightMessage);return false}}else{if(B.which==3){alert(copyrightMessage);return false}}};A.oncontextmenu=function(){return false}};

Thanks!