How to create public and private members?
<p>I'm a bit confused, how can I create public and private members.</p>

<p>My code template so far is like:</p>

<pre><code>(function()){
   var _blah = 1;

   someFunction = function() {
     alert(_blah);
   };

   someOtherFunction = function() {
     someFunction();
   }
}();
</code></pre>
