Everything expanded. Why?

Any Ideas for both modules to work together?

you should better ask the mod_scrolltotop module developper because this the one that do not use the native mootools and comes with its own library It should code regarding the noconflict option to not break some other script.

Or look in the JED(extensions.joomla.org) to find another module to do this with mootools

Thanks a lot ced.
You really helped me

Keep up the good work!