Object Clone Prototype

clone.js

Object.prototype.clone = function(){
    var obj = (this instanceof Date) ? new Date(this) : (this instanceof Array) ? [] : {};
    if(obj instanceof Date)
        return obj;
    for(i in this){
        if(i == 'clone')
            continue;
        (this[i] && typeof this[i] == 'object') ? obj[i] = this[i].clone() : obj[i] = this[i];
    }
    return obj;
}