rtm-js is a javascript library for the Remember the Milk API.
Usage:
rtm = new RememberTheMilk(api_key, api_secret, 'delete');
rtm.get('rtm.tasks.getList', {list_id: listId, filter: 'status:incomplete'}, function(resp){
// ...
});
See example.html for a more detailed example, or see rtm.js for actual methods.