One Way Communications Between Model and Support 
<p>In the fiddle below, I'd like <code>Mo</code> to be able to call <code>Su</code> but not the other way around.</p>

<p>How can I implement this.  I don't want to use events.  Just native functionality of JavaScript.</p>

<p>Models are the traditional models found in the MVC.  Support contains support functions needed by the model to run.</p>

<p>Mo -> Su</p>

<p><a href="http://jsfiddle.net/bkYcr/2/" rel="nofollow">http://jsfiddle.net/bkYcr/2/</a></p>
