Adding A Layout Handle From A Controller:

Here is the way to go…….

<pre>$update = $this->getLayout()->getUpdate();

$update->addHandle('default');

$this->addActionLayoutHandles();

$update->addHandle('your_handle');

$this->loadLayoutUpdates();

$this->generateLayoutXml();

$this->generateLayoutBlocks();

$this->_isLayoutLoaded = true;

 

reference: http://jaseir.com/magento/adding-a-layout-handle-from-a-controller/