How to view recent sold product of current category in magento?

load(3);

$_productCollection = $cats->getProductCollection() ->addAttributeToFilter('visibility',4);

$intNumRecord = Mage::getStoreConfig('banner/carousel_configuration/bestseller_number_product');

$_productCollection = $_productCollection ->setPageSize($intNumRecord);

if($_productCollection->count()) { ?>

load($_products->getId());?>

"> getName()) > 20)
{
echo substr($_product->getName(),0,17)."...";
}
else
{
echo $_product->getName();
} ?>