Right, it's pretty simple.

The main progression is:

F# - B - C#

For the bridge play:

B - C#

then resume the main progression.

Chords:
     F# (244322@1)    B (x2444x@1)    C# (x43121@1)e|------------------------|
B|---11------12-----14----|
G|---11------11-----13----|
D|---11------9------11----|
A|---9-------9------11----|
E|------------------------|