Space Quest in JavaScript

On sarien.net, you can play some of the old Sierra adventure games directly in your browser. Doesn't need a plugin, it's simple JavaScript. Available are: 'Space Quest I: The Sarien Encounter', 'Police Quest: In Pursuit of the Death Angel', an 'Leisure Suit Larry in the Land of the Lounge Lizards'. They also explain how they converted the code to JavaScript, quite interesting. The only drawback is that they seem to have added a multiplayer part: When you are in a location, you see a lot of other players, which is pretty confusing and doesn't make any sense at all.