JQuery Time-Delay Event Binding Plugin

Just to get a sense of how hard it would be I decided to write a plugin for JQuery I didn't see in the core. Basically this is a the same thing as the .bind function for JQuery except that it takes a timing parameter. How is this useful? Say you want do something 'onclick' or 'onchange' except you want to wait X milliseconds first. Perfect for an autocomplete ('onkeyup' I guess you'd use).

I have to say, I really like the JQuery programming model, and I think the author has really hit on something special. The plugin structure lets me write something that encapsulates state, and at the same time gives me a way to use it as if it were a static function. Pow.

Without further ado:

Update [12/10/2008]: The original version of this script didn't pass in the event object like JQuery's event binding. This has now been corrected. Invocation of the plugin stays the same.

----
Javascript:

(function($){
    /**
     * jQuery delayed event execution.
     */
    $.fn.delay = function(options) {
        var timer;
        var delayImpl = function(eventObj) {
            if (timer != null) {
                clearTimeout(timer);
            }
            var newFn = function() {
                options.fn(eventObj);
            };
            timer = setTimeout(newFn, options.delay);
        }
       
        return this.each(function() {
            var obj = $(this);
            obj.bind(options.event, function(eventObj) {
                 delayImpl(eventObj);  
            });
        });
    };
})(jQuery);

----

Usage:

 $(document).ready(function() {
  $('#typeinme').delay({
   delay: 500,
   event: 'keyup',
   fn: function(){
    alert(this.value);
   })
  });
 }

----
Html:

<form action="#" method="get">
<input id="typeinme" name="station"></input>
</form>