How to display total cart quantity

<?php  

if(Mage::getSingleton('checkout/session')->getQuote()->getItemsSummaryQty() > 0) 

{ ?>

<?php  echo  'Items ('. __(Mage::getSingleton('checkout/session')->getQuote()->getItemsSummaryQty()) .')'?>

<?php
 } 
else 
{ ?>

 Item  (0)

<?php } ?>