cool! but that's actually a bush-cricket, not a grasshopper! :D
a grasshopper's antennae are shorter and segmented.

some further reading if you are interested:
http://www.dgerc.org.uk/files/dgerc/downloads/Crickets_and_grasshop...

Thanks Zahand, I wasn't aware of that. In Swedish this one is called "Vårtbitare" which means "wart biter". Strange name...