new EventManager()
    EventManager is used to manager DOM events creating and destruction in a single function call.
It is used by objects to make it easier to add and remove events from global DOM objects.
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Members
events :Array
    Stores all events in the manager, their target and callback.
Format [target, event, callback, active]
    Type:
- Array
 
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Methods
add(target, event, callback)
    Add new event to the manager.
    Parameters:
| Name | Type | Description | 
|---|---|---|
target | 
            
            Element | Event target element. | 
event | 
            
            String | Event name. | 
callback | 
            
            function | Callback function. | 
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clear()
    Destroys this manager and remove all events.
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create()
    Creates all events in this manager.
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destroy()
    Removes all events in this manager.
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