Stop trying to emulate the focus/blur event in IE, doesn't work as one might expect, anyway. Instead, implement the focusin/focusout events in all other browsers - which creates a much better parity across all browsers. Uses event capturing instead of bubbling to make it happen. Thanks to Alexander for the recommendation and to Joern Zaefferer for the original focus/blur delegation code.

src/support.js

@@ -111,7 +111,6 @@
 	
 	jQuery.support.submitBubbles = eventSupported("submit");
 	jQuery.support.changeBubbles = eventSupported("change");
-	jQuery.support.focusBubbles = eventSupported("focus");
 
 	// release memory in IE
 	root = script = div = all = a = null;