Change all website links to affiliate links automatically

Question

I would like to be able to automatically change links into affiliate links automatically on my MediaWiki installation. This would help to reduce the amount

Answer 1

Not sure how great it would be performance wise for hundreds of links.

// Plain Javascript

var links = document.getElementsByTagName('a');

for (var i = 0, max = links.length; i < max; i++) {
    var _href = links[i].href;

    if (_href.indexOf('gog.com') !== -1) {
        links[i].href = _href + '?pp=708a77db476d737e54b8bf4663fc79b346d696d2';   
    }
}

DEMO