Mine's a Double

[ianwaugh@xxxxxxxxx (Ian Waugh)]

Is anyone aware of any code for finding double tops and double bottoms? 
It's for use with an indicator but presumably any code that can find 
these things could be used on any kind of data.

I have an indicator, let's say it plots a value kk, and during its 
meanderings, I'd like to know if it has formed a double top (M shape) or 
double bottom (W shape). I'd then be able to do things like:

if kk>50 and "double top" then...

Would much appreciate any pointers.

Ian