How to access a variable state from the defining function rather than the calling object
<p>eg:</p>

<pre><code>func = (){

    var i_want_this = "yes";

    var callback = function(){
        // I want to access value of i_want_this here
        // Preferably just the single variable without the whole scope
    };

    obj.subfunc(some_stuff, callback);

};


obj = {

    subfunc = function(stuff, callback){

        // do stuff

        callback();

    }

};

func();
</code></pre>
