It looks like the second level of indirection breaks the Function 
Closure on your html variable that you think you've set up in your 
usePointFromPostcode() function.

I think that what you have to do is create an Object that's going to 
hold your context and make your callback method a method on that object, 
then it can access the variables that are stored in its "this". By using 
null as your context-holding object, you lose the context.

If you're still stuck, you'll probably get better advice on the AJAX 
Search API group, because your problem is with the way you're using 
localSearch.setSearchCompleteCallback().

Alternatively, geocode your postcodes once, offline, and store the 
coordinates.

-- 
Mike Williams
http://econym.org.uk/gmap



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