Object.extend

Object.extend.js

if (typeof Object.extend !== 'function') {
    Object.extend = function (d, s) {
        for (var k in s) {
            if (s.hasOwnProperty(k)) {
                var v = s[k];
                if (d.hasOwnProperty(k) && typeof d[k] === "object" && typeof v === "object") {
                    Object.extend(d[k], v);
                } else {
                    d[k] = v;
                }
            }
        }
        return d;
    };
}