How come it says array is undefined?
<p>Here is a javascript sample:</p>

<pre><code>var obj =
{
   options:  [],

   init:  function( )
   {
       options['one'] = 'one';
       for( k in options )
       {
          alert( options[k] );
       }
   }
};
</code></pre>

<p>instead of prompting "one", it says undefined, why?</p>
