title: Differentiate between iPhone and iPad in Titaninum Appcelerator
body: <p>I am new to the cross platform Titanium SDK, and the Alloy MVC framework.</p>
  
  <p>I created a button inside index.xml like this:</p>
  
  <pre><code> &lt;Alloy&gt;
      &lt;Button id="button"&gt;Click Me&lt;/Button&gt;
  &lt;/Alloy&gt;
  </code></pre>
  
  <p>But now I want to know how to display the title "Click Me" when on an iPhone, and display the title "Submit" when on an iPad.</p>
  
  <p>Where do I need to write the condition? In index.xml, index.js, or index.tss?</p>