usage of IDs impossible?

usage of IDs impossible?

Hallo,
Hallo,
yesterday I used jQuery Mobile to enable my pages for swiping from one to another:
http://www.ulrichbangert.de/orchid/spathoglottis-kimballina-hybr.php
Works fine so far, but one issue is left: In my responsive menu (I include this using PHP include) I use IDs to address elements. Using firebug I learned that JM keeps all pages in different divs in the same PHP page. Thus it seems to me that the usage of IDs is impossible as these must be unique. Am I right? How to fix this problem? Only use classes?
Best regards