[Opserty]

It depends on the Photo gallery. If it is done properly then it should have a line which says:

PHP Code:

define('THIS_SCRIPT', 'blabla'); 


In the PHP file. If there is such a line then you can use this:

<if condition="THIS_SCRIPT == 'blabla'">
   We are in Photogallery
<else />
   We are not in photogallery
</if>

In which ever template you need to.