Possible implementation of Object.implement

obj_implement.js

//CODE by Andrea Giammarchi - READ MORE: http://webreflection.blogspot.it/2009/06/wait-moment-javascript-does-support.html
Object.implement = function(o, constructor){
    // Another WebReflection Insane Snippet
    if(o instanceof constructor)
        // nothing to check
        // classical boring stuff
        return true;
    // let's check if things are OK
    var k, b = true,
        // take the instance constructor prototype
        po = o.constructor.prototype,
        // take the implemented prototype
        pc = constructor.prototype
    ;
    // for each property or method
    // in the implemented constructor
    for(k in pc)
        // check if the instance inherited prototype
        // has this method/property as well
        b = b && k in po; //* TOTHINK: */ && (typeof po[k] === typeof pc[k]); //*/
    // if there was nothing to check
    // we cannot say a word ... but ...
    // if instance has every method/property
    // present in the compared constructor
    // prototype, we could say this instance
    // implements this constructor
    return !!k && b;
};