Class: Group {#Group}
=====================

This class is for grouping Classes or Events. The Event added to the Group will fire when all of the events of the items of the group are fired.

### Syntax:

	var myGroup = new Group(class[, arrays[, class2[, ... ]]]);

### Arguments:

Any number of Class instances, or arrays containing class instances.

### Returns:

* (*object*) A new Group instance.

### Examples:

	var xhr1 = new Ajax('data.js', {evalScript: true});
	var xhr2 = new Ajax('abstraction.js', {evalScript: true});
	var xhr3 = new Ajax('template.js', {evalScript: true});

	var group = new Group(xhr1, xhr2, xhr3);
	group.addEvent('onComplete', function(){
		alert('All Scripts loaded');
	});

	xhr1.request();
	xhr2.request();
	xhr3.request();



Group Method: addEvent {#Group:addEvent}
----------------------------------------

Adds an Event to the stack of Events of the Class instances.

###	Syntax:

	myGroup.addEvent(type, fn);

###	Arguments:

1. type - (*string*) The event name (e.g. 'onComplete') to add.
2. fn   - (*function*) The callback function to execute when all instances fired this event.

###	Returns:

* (*object*) This Group instance.

###	Examples:

	var myElements = $('myForm').getElements('input, textarea, select');
	myElements.addEvent('click', function(){
		alert('an individual click');
	});

	var myGroup = new Group(myElements);
	myGroup.addEvent('click', function(){
		alert('all form elements clicked');
	});



###	See Also:

[Element.addEvent]: /Element/Element.Event/#Element:addEvent