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diff --git a/java/gjt/ImageButtonEvent.java b/java/gjt/ImageButtonEvent.java
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+package gjt;
+
+import java.awt.Event;
+
+/**
+ * An extension of java.awt.Event, specifically designed for
+ * ImageButton events.<p>
+ *
+ * ImageButtonEvents are constructed with 3 arguments:
+ * <dl>
+ * <dd> ImageButton in which the event occurred
+ * <dd> The AWT event that triggered the image button event
+ * <dd> The id of the event.
+ * </dl>
+ *
+ * An ImageButtonEvent's id (the constructor's 3rd argument),
+ * must be one of the following:
+ *
+ * <dl>
+ * <dd> ImageButtonEvent.ARM
+ * <dd> ImageButtonEvent.DISARM
+ * <dd> ImageButtonEvent.ACTIVATE
+ * </dl>
+ *
+ * ImageButtonEvent has only a constructor and a paramString() 
+ * method.  Containers that contain ImageButtons should check 
+ * for ImageButtonEvents like so: <p>
+ * 
+ * <pre>
+ *      // handleEvent(Event) method of a container that
+ *      // contains ImageButtons.
+ *
+ *      public boolean handleEvent(Event event) {
+ *              if(event instanceof ImageButtonEvent) {
+ *                  ImageButtonEvent ibevent = 
+ *                  (ImageButtonEvent)event;
+ *
+ *                  if(ibevent.isArmed()) {
+ *                      // do something for arming
+ *                  }
+ *                  if(ibevent.isDisarmed()) {
+ *                      // do something for disarming
+ *                  }
+ *                  if(ibevent.isActivated()) {
+ *                      // do something for activation
+ *                  }
+ *              }
+ *      }
+ * </pre>
+ *
+ * ImageButtonController is the only GJT class that creates
+ * ImageButtonEvents.
+ * 
+ * @version 1.0, Apr 1 1996
+ * @author  David Geary
+ * @see     ImageButton
+ * @see     ImageButtonController
+ * @see     SpringyImageButtonController
+ * @see     StickyImageButtonController
+ * @see     gjt.test.ImageButtonTest
+ */
+public class ImageButtonEvent extends Event {
+    public static final int ARM      = 1;
+    public static final int DISARM   = 2;
+    public static final int ACTIVATE = 3;
+
+    private int eventType;
+
+    public ImageButtonEvent(ImageButton button,
+                            Event       event, 
+                            int         type) {
+        super(button, event.when, event.id, event.x, event.y,
+                      event.key,  event.modifiers, event.arg);
+
+        Assert.notFalse(type == ARM    ||
+                        type == DISARM ||
+                        type == ACTIVATE);
+
+        eventType = type;
+        id = -1;
+    }
+    public boolean isArmed() {
+        return eventType == ARM;
+    }
+    public boolean isDisarmed() {
+        return eventType == DISARM;
+    }
+    public boolean isActivated() {
+        return eventType == ACTIVATE;
+    }
+    protected String paramString() {
+        String str = new String();
+
+        if(eventType == ImageButtonEvent.ARM)         
+            str = "ARM";
+        else if(eventType == ImageButtonEvent.DISARM) 
+            str = "DISARM";
+        else if(eventType == ImageButtonEvent.ACTIVATE) 
+            str = "ACTIVATE";
+
+        return super.paramString() + str;
+    }
+}