jQuery special events

Custom clickoutside event http://benalman.com/news/2010/03/jquery-special-events/

HTML

<h1>
    <a href="http://benalman.com/news/2010/03/jquery-special-events/" target="_top">jQuery special events</a>
    &raquo; Custom clickoutside event
</h1>

<p class="intro">(click boxes, non-boxes, whatever)</p>

<div id="test">
    <div id="a">
        a
        <div id="b">
            b
            <div id="c">c</div>
            <div id="d">d</div>
        </div>
        <div id="e">
            e
            <div id="f">f</div>
            <div id="g">g</div>
        </div>
    </div>
</div>

<div id="log"></div>

CSS

body { font-family: Arial, Helvetica, sans-serif; font-size: 0.8em; }
h1 { font-weight: 700; font-family: "Gill Sans", "Gill Sans MT", Arial, Helvetica, sans-serif; }
h1, a { color: #913D00; }
a:hover { color: #FF7F00; }
h1 { font-size: 120%; margin-bottom: 0.6em; }
.intro { font-style: italic; margin-top: 0.5em; }

#test div {
    border: 1px solid #000;
    margin: 1em 0;
    padding: 0.5em 1em;
}

#a, #b, #e {
    padding-bottom: 0 !important;
}

#log {
    margin-top: 1em;
}

JavaScript

$(function(){

	$('#d').on('custom', {otherParam:'uha-ha!'}, function(event, param1, param2){
  alert(param1 + "\n" + param2); // так осуществляется доступ к данным extraParameters
  alert(event.data.otherParam);  // а так к данным eventData
});
 
// вызовим событие методом trigger, в результате будет запущен наш обработчик
$('#d').trigger('custom', ['Custom', 'Event']);



    function log(){
        $('#log').append([].join.call(arguments,', ')+'<br/>');
    };
    
    // Clear the log on click.
    $(document).bind( 'click', function(){ $('#log').empty(); });
    
    // This should fire first.
    $('#test div').bind( 'clickoutside', function(event){
        var clicked = event.target;
        
        log( '1. clickoutside: #' + this.id,
            '(clicked: ' + (clicked.id ? '#' + clicked.id : clicked.tagName) + ')' );
        
        //event.stopImmediatePropagation(); // Un-comment to stop immediate propagation.
    });
    
    // This should fire second.
    $('#test div').bind( 'clickoutside', function(event){
        log( '2. clickoutside' );
    });
    
    //$('#test div').unbind( 'clickoutside' ); // Un-comment this line to un-bind event handlers.
    
});

//////////////////////////////////////////////////
// THE FOLLOWING CODE IS TAKEN FROM THE EXAMPLE //
//////////////////////////////////////////////////

(function($){
  
  // A collection of elements to which the clickoutside event is bound.
  var elems = $([]);
  
  // Special event definition.
  $.event.special.clickoutside = {
    setup: function(){
      // Add this element to the internal collection.
      elems = elems.add( this );
      
      // If this is the first element to which the event has been bound,
      // bind a handler to document to catch all 'click' events.
      if ( elems.length === 1 ) {
        $(document).bind( 'click', handle_event );
      }
    },
    teardown: function(){
      // Remove this element from the internal collection.
      elems = elems.not(...