Resize pictures

Hello,

$image = aq_resize( $img_url, 287, 222 , true, ”, true ); These codes belongs where pictures sizes.

Game Addict pictures size like this http://i.hizliresim.com/2v75Xq.jpg

But i want resize pictures like this http://i.hizliresim.com/DoX9nO.jpg

How can i edit code so it should change picture’s ratio instead of cutting image with spesific size.

Thank you for answer.