[flexcoders] Example of Object.isPrototypeOf ()

[Roscoe P Coltrane]

Could someone give me a working or semi-working example of how/when to 
use isPrototypeOf()? I was thinking that I could query an object and 
if it was a descendent of another object, [the argument to 
isPrototypeOf()], the method would return true. Not so :) Obviously I 
don't understand the usage of this method.

Thanks,
Roscoe