get current wesite or strore id , name , code in magento

get current website id
<?php echo  Mage::app()->getWebsite()->getId(); ?>
get current website name
<?php echo  Mage::app()->getWebsite()->getName(); ?>

 
 <?php echo Mage::app()->getStore()->getCode(); ?>

get store code

<?php echo Mage::app()->getStore()->getId(); ?>

Echo Store ID 

<?php echo  Mage::app()->getStore()->getName(); ?>

Echo Store View Name 

<?php echo  Mage::app()->getStore()->getGroup()->getName(); ?>

Echo Store Group Name 

<?php echo  Mage::app()->getWebsite()->getName(); ?>