jquery.listen.js

// Usage:
// $(context).delegate(selector,eventType[,eventData],handler);
// $(context).undelegate(selector[,eventType][,handler]);

jQuery.each({ delegate : "live", undelegate : "die" }, function(k, v) {
    jQuery.fn[k] = function() {
        var sel = Array.prototype.shift.apply(arguments), args = arguments;
        return this.each(function() {
            $.fn[v].apply($({ selector : sel, context : this }), args);
        });
    };
});