Android Browser Menu not working

hi,
please check the following url klangraum.info with an Android Browser (e.g. Galaxy S3).
The menu is only visible for just a few milli seconds. When i use the Chrome Browser on my mobile, the menu is working! But not on the default Android Browser...

Hope you can help me!
thx Andreas

i fixed it! doing the changes in

www.hotjoomlatemplates.com/support-forum...-mobile-doesn-t-work
and
www.hotjoomlatemplates.com/support-forum...e-doesn-t-work#37754
thx