What I do is store a global reference to the clicked marker when I open
the info window.

var lastmarker;         // global variable

function createMarker(...) {
  var marker =  newGMarker(point);
  GEvent.addListener(marker, "click", function() {
    lastmarker = marker; // save the global reference
    marker.openInfoWindowHtml( ... )
  });
}


By far the easiest way to change the info window size is to re-open it
with changed contents. One neat way to do that is to use a custom event.
E.g. arrange for the element inside the window to use
   onclick = 'GEvent.trigger(lastmarker, "Click2")'
and add code to your createMarker() function to open the info window
with the different contents when there's a "Click2" event.

function createMarker(...) {
  var marker =  newGMarker(point);
  GEvent.addListener(marker, "click", function() {
    lastmarker = marker; // save the global reference
    marker.openInfoWindowHtml( ... )
  });
  GEvent.addListener(marker, "Click2", function() {
    marker.openInfoWindowHtml( ... different contents ... )
  });
}

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


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