The following SCRIPT element defines an event listener and registers it with the plug-in object. The event listener function will be called each time the specified event is triggered inside the plug-in.
var selCount = 0;
selCount = selCount + 1;
selectionCounter.value = "SelectionCount = " + selCount;
var objPlugIn = document.getElementById('objPlugIn');
objPlugIn.addEventListener("selectionchanged", OnSelectionChanged, false)
For a list of events see also Events: Reference.
For information about event listeners, see the relevant W3C Recommendation.
The methods, properties, and sub-objects available in the Authentic Browser Plug-in are described in the reference section of this documentation.