how to change the focus of tabbaritem on iphone
<p>i have 4  items in tabbar controller now bydeafult 1st item is selected  now how to change this so that i can show 4th item by default whenever my app start  .</p>

<p>this is too simple but i cant figure it out    and how to listen to whenevr items are pressed ??</p>

<p>right now i can load a view based on tap but i want that code like </p>

<pre><code>if(tabbar.button==2)


 then do this...
</code></pre>

<p>Thanks</p>
