Ambiguous communication plugin. Small API surface. Publish some message to listeners. Added ability to attach a priority to a subscriptions. Added ability to publish only to callbacks that have a specific priority. Default priority can be overridden by setting jQuery.subscribe.default_priority.
Being stolen directly from the Dojo Toolkit source, this plugin is released under a dual AFL/BSD license identical to Dojo proper. See http://dojotoolkit.org/license for more information.