Index: core/impl/main/java/org/directwebremoting/engine.js
===================================================================
--- core/impl/main/java/org/directwebremoting/engine.js	(revision 2132)
+++ core/impl/main/java/org/directwebremoting/engine.js	(working copy)
@@ -23,6 +23,19 @@
 
 (function() {
   dwr.engine = { };
+  
+  dwr.engine._exceptionHandlers = { };
+  
+  /**
+    * Register an exception handler for {@code type}
+    * @param type The type of exception to match.  This can be a constructor value
+    * or class name
+    * @param {Function} handler The function to call when an exception occurs happens
+    * @see http://getahead.org/dwr/browser/engine/errors
+    */
+  dwr.engine.registerExceptionHandler = function(type, handler) {
+    dwr.engine._exceptionHandlers[type] = handler;
+  };   
 
   /**
     * Set an alternative error handler from the default alert box.
@@ -688,14 +701,39 @@
       if (ex.message == undefined) {
         ex.message = ""; 
       }
-
+      
+      var chain = true;  
       if (typeof handlers.exceptionHandler == "function") {
-        handlers.exceptionHandler.call(handlers.exceptionScope, ex.message, ex, handlers.exceptionArgs);
+        chain = handlers.exceptionHandler.call(handlers.exceptionScope, ex.message, ex, handlers.exceptionArgs);
       }
-      else if (typeof batch.errorHandler == "function") {
-        batch.errorHandler(ex.message, ex);
+      
+      var registeredHandler = dwr.engine.remote.getRegisteredExceptionHandler(ex);
+      if (chain && typeof registeredHandler == 'function') {
+        chain = registeredHandler.call(Object, ex.message, ex);
       }
+      else if (chain && typeof batch.errorHandler == "function") {
+        chain = batch.errorHandler(ex.message, ex);
+      }
     },
+    
+    /**
+     * Called by the handleException: Find a global exception handler
+     * for the given exception
+     * @private
+     * @param {Object} ex Exception instance
+     * @return Registered exception handler or undefined if there is no handler registered for {@code ex}
+     */
+    getRegisteredExceptionHandler: function(ex) {
+        for (var type in dwr.engine._exceptionHandlers) {
+            // Use coercion (==) operator to compare functions
+            if (type == ex.constructor) {
+                return dwr.engine._exceptionHandlers[type];
+            } 
+            else if (ex.javaClassName && ex.javaClassName === type) {
+                return dwr.engine._exceptionHandlers[type];
+            }
+        }
+    },
 
     /**
      * Called by the server: The whole batch is broken