Index: test/unit/event.js
===================================================================
--- test/unit/event.js	(revision 6529)
+++ test/unit/event.js	(working copy)
@@ -264,6 +264,13 @@
 	}).load();
 });
 
+test("trigger() event.isSynthesized", function() {
+	expect(1);
+	jQuery('#check1').click(function(event) {
+	    ok( event.isSynthesized, "Check that click() knows it's a synthesized event" );
+	}).click();
+});
+
 test("trigger() bubbling", function() {
 	expect(14);
 
Index: src/event.js
===================================================================
--- src/event.js	(revision 6529)
+++ src/event.js	(working copy)
@@ -207,6 +207,7 @@
 		}
 
 		event.currentTarget = elem;
+		event.isSynthesized = true;
 
 		// Trigger the event, it is assumed that "handle" is a function
 		var handle = jQuery.data(elem, "handle");