Object.clone

gistfile1.txt

Object.clone(obj,deep){
    if(obj == null || typeof(obj) != 'object')
        return obj;

    if(deep){
        var temp = obj.constructor(); // changed
        for(var key in obj)
            temp[key] = clone(obj[key]);
        return temp;
    }else{
        function cloned(){}
        cloned.prototype = obj;
        return new cloned;
    }
}