OffsetPointOnCurve

[I know very little about Rhinoscript]. I found the perfect Rhinoscript [here][1]. But I am getting the following error:

Source: Microsoft VBScript runtime error
Error: Variable is undefined: ‘dom’
Line: 21
Char: 11

In the particular case I am using the script, I am trying create a point at a set length of the circumference of a circle.

OffsetPointOnCurve.rvb (1.1 KB)
[1]: http://wiki.mcneel.com/developer/scriptsamples/curvearclengthpoint

Any help would be appreciated.
Thanks,
André

Attached is the corrected version. There was a typo.OffsetPointOnCurve_Corrected.rvb (1.1 KB)

Wow, that fast! Thank-you very kindly.
-=André