prog challenge [PART XVII]

Write a program which takes a Brainfuck¹ program with unbounded memory as an input and outputs 1 if the Brainfuck ever halts and 0 otherwise.

Deadline is 2010-10-16 at 00:00 GMT.

One last thing: DON'T HELP THEM!!!
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^{1 as defined in http://en.wikipedia.org/wiki/Brainfuck}

>>7
It's still moderately functional. Much like Javascript.