A small script that makes it possible to chain the HTML5 canvas methods. Pretty much a smaller version of chainvas: http://leaverou.github.com/chainvas/

chainable_canvas.js

(function(){
   
    var c = window.CanvasRenderingContext2D.prototype,
        
        wrapFn = function (method) {
            return function () {
                var ret = method.apply(this, arguments);
                return ret === undefined ? this : method;
            };
        };
    
    for (var i in c) {
        c[i] = wrapFn(c[i]);
    }
    
})();