Defines file for directory paths

[silversurfer5150]

Hey there,

I have made some edits to the o include AdminProducts php file:

To include this class in the back office you type:

include_once(PS_ADMIN_DIR.'/tabs/AdminProducts.php');

How to I make this visiable to the front end? Where is the defines definition for PS_ADMIN_DIR and how to I make the front end aware of this?

thanks

Silver