Aw: Serbian language
Copy the file www.yoursite.com\components\com_jshopping\lang\en-GB.php to www.yoursite.com\components\com_jshopping\lang\sr-RS.php
Open this new file. You will get these strings :
<?php
define('_JSHOP_DETAIL', 'Detail');
define('_JSHOP_QUANTITY', 'Quantity');
define('_JSHOP_ADD_TO_CART', 'Add to cart');
define('_JSHOP_ADD_TO_WISHLIST', 'Add to wishlist');
define('_JSHOP_WISHLIST_IS_EMPTY', 'Your wishlist is empty');
define('_JSHOP_ORDER_BY', 'Order by');
define('_JSHOP_DISPLAY_NUMBER', 'Display');
define('_JSHOP_TABS_MAIN', 'Main');
define('_JSHOP_TABS_VIDEO', 'Video');
define('_JSHOP_PRODUCT', 'Product');
define('_JSHOP_PRICE', 'Price');
...
?>
Replace the text like 'Detail', 'Add to cart' etc to serbian translation.
That's all.
For backend, proceed the same with the file
www.yoursite.com\administrator\components\com_jshopping\lang\en-GB.php