standard tuning

G|-------------------------------------|
D|------------------11h13-------11h13--|
A|-------------11h13--------11---------|
E|---11--11----------------------------|

just repeat that for a while

then every now and then it changes to:

G|-----------------11h13-------11h13--|
D|------------11h13--------11---------|
A|---11--11---------------------------|
E|------------------------------------|

thats it, its a little tricky to keep up the speed through the whole song, try not to 
a hand cramp :)
have fun!