The problem is that in Javascript, function references are variables.

If you write
     function directions(dirStart) {
       ...
       directions = new GDirections(map, directionsPanel);
       ...
     }

Then "directions" is no longer a reference to your function, it's a 
GDirections Object. So the next time you get here

     onSubmit="directions(document.getElementById('dirStart').value);
               return false;"

It crashes, because you can't call a GDirections Object like that. It 
never gets as far as the "return false", so nothing stops the <form> 
from performing its default "action", and it reloads the page for you.

-- 
http://econym.org.uk/gmap
The Blackpool Community Church Javascript Team


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