Use String#include wherever possible.

CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Use String#include wherever possible.
+
 * In IE, allow opacity to be set on elements not yet attached to the document. Closes #9904. [Thomas Fuchs, dcpedit, Tobie Langel]
 
 * Avoid the try..catch block in Ajax.Response#_getResponseJSON unless required. [Tobie Langel]

src/event.js

@@ -133,7 +133,7 @@ Object.extend(Event, (function() {
   }
   
   function getDOMEventName(eventName) {
-    if (eventName && eventName.match(/:/)) return "dataavailable";
+    if (eventName && eventName.include(':')) return "dataavailable";
     return eventName;
   }