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  and right margins and subtract 2 from the value passed to the "width" 
  configuration property in order to have the Panel render at the desired 
  width.  For example, to render a Panel 300px wide, pass a value of "298px" 
  to the "width" configuration property.


*** version 2.2.2 ***

+ Clicking the close button of a Panel (or any instance of a Panel subclass) 
  registered with an OverlayManager will no longer result in the Panel 
  receiving focus.

+ Overlay instances registered with an OverlayManager will now correctly 
  blur themselves when hidden.

+ Calling the "destroy" method of an Overlay instance will now result in it 
  being removed from its OverlayManager instance(s).

+ The DOM event listener for the event defined by the "focusevent" 
  configuration property of an OverlayManager instance is now removed from each 
  Overlay instance when it is removed from its OverlayManager.

+ All subscribers for an Overlay instance's "focus" and "blur" events are 
  now unsubscribed when it is removed from its OverlayManager.


*** version 2.2.1 ***

+ Made the default scope for all Custom Events published by Module, Overlay, 
  Panel, Tooltip, Dialog and SimpleDialog the widget instance.  Previously the 
  default scope for Custom Events was inconsistent across classes; the default
  scope for Custom Events published by Overlay was always the Overlay instance
  whereas the Custom Events published by all of the other classes had no 
  default scope.  

+ Added default scope for CustomEvents published by YAHOO.util.Config:
  - Default scope for the "configChangedEvent" is now the Config instance.
  - Default scope for Config property events is now the Config's owner (widget).

+ Panel and Tooltip now always convert the value of a DOM element's "tagName" 
  property to uppercase before evaluating it.  This improves 
  XHTML compatibility.
  
+ Pressing the enter key while focused on a form field inside a Dialog will 
  now trigger the "click" event handler defined by the Dialog's default 
  button in IE and Firefox.  Previously, this behavior only worked in Safari 
  and Opera.

+ Added a "yui" prefix to the default CSS class name for Module to be 
  consistent with the other Container family widgets.

+ Container/Panel's underlay shadow is now defined as partially-transparent
  black rather than gray.  This prevents the shadow from lightening the 
  background color of elements beneath it.

+ Fixed memory leaks in Panel and Dialog.

+ The Drag and Drop library is now a truly optional dependency for Panel and its 
  subclasses.

+ Panel "focus" and "blur" events are now fired when Panels are focused and 
  blurred via the "focus" and "blurAll" methods of YAHOO.widget.OverlayManager.

+ Panel instances rendered without setting the value for the "width" 
  configuration property will now have their "width" configuration 
  property set to the value of the Panel's element's "offsetWidth" property 
  when rendered.  This fixes an issue in IE 6 and 7 where Panels that are 
  rendered without setting the "width" configuration property will only be 
  draggable by mousing down on the text inside the header, rather than anywhere 
  inside the header.
  
+ Refactored the Container family including the Config class to improve 
  performance, especially when working with a large number of instances in IE6.



*** version 2.2.0 ***

    Module
       - Removed hardcoded file paths for image roots.  Affected properties
       include:
        - YAHOO.widget.Module.IMG_ROOT
        - YAHOO.widget.Module.IMG_ROOT_SSL
       - HTML elements, created via createElement, now use lowercase.

    Panel
       - To shield against CSS class collision, the following references now
       have a "yui-" prefix:
          - YAHOO.widget.Panel.CSS_PANEL now references CSS class "yui-
          panel".
          - YAHOO.widget.Panel.CSS_PANEL_CONTAINER now references CSS class
          "yui-panel-container".
       -  Close button can now be configured via the CSS class "container-
       close".
       - HTML elements, created via createElement, now use lowercase.

    Dialog
       - To shield against CSS class collision, the following references now
       have a "yui-" prefix:
        - YAHOO.widget.Dialog.CSS_DIALOG now references CSS class "yui-
        dialog".
       - HTML elements, created via createElement, now use lowercase.

    SimpleDialog
       - Removed hardcoded file paths for SimpleDialog icons, which are now
       configurable in CSS:
          - YAHOO.widget.SimpleDialog.ICON_BLOCK now references CSS class
          "blckicon".
          - YAHOO.widget.SimpleDialog.ICON_ALARM now references CSS class
          "alrticon".
          - YAHOO.widget.SimpleDialog.ICON_HELP now references CSS class
          "hlpicon".
          - YAHOO.widget.SimpleDialog.ICON_INFO now references CSS class
          "infoicon".
          - YAHOO.widget.SimpleDialog.ICON_WARN now references CSS class
          "warnicon".
          - YAHOO.widget.SimpleDialog.ICON_TIP now references CSS class
          "tipicon".
       - To provide shield against CSS class collision the following
       references now have a "yui-" prefix:
          - YAHOO.widget.SimpleDialog.CSS_SIMPLEDIALOG now references CSS
          class "yui-simple-dialog";

    Tooltip
       - To shield against CSS class collision, the following references now
       have a "yui-" prefix:
          - YAHOO.widget.Tooltip.CSS_TOOLTIP now references CSS class "yui-
          tipicon" "yui-tt";

*** version 0.12.2 ***

    Module
       - Corrected issue where listener was not properly removed from resize
       monitor element when "monitorresize" is disabled

    Panel
       - Fixed issue that would sometimes prevent select lists from working
       properly in Firefox

    Dialog
       - Fixed error that would occur when trying to create a Dialog where
       the first form element is set to "disabled"
       - Modified "close" property handler for Dialog/SimpleDialog to call
       "cancel" instead of "hide"

*** version 0.12.1 ***

    All Classes
       - "monitorresize" property now functions in situations where
       document.domain has been modified.
       - YAHOO.widget.Module.textResizeEvent now fires when the font size is
       changed (except for Opera, which uses "zoom" functionality that
       prevents this)
       - Event listeners attached to container elements are now properly
       purged on destroy using YAHOO.util.Event.purgeElement

    Panel
       - Fixed issue where focus events were broken on the page when a modal
       Panel was created

    Dialog
       - Fixed bug where hitting "enter" on a Dialog was forcing the default
       submission behavior of the form's action to execute
       - Dialog no longer tries to give focus to hidden form elements.
       - Replaced   references in Panel with   for XHTML
       compliance.
       - Fixed issue that was preventing Safari from successfully using the
       getData() function

*** version 0.12 ***

    All Classes
       - New documentation format implemented, and removed unnecessary
       prototype null references previously used for generating
       documentation

    Config
       - Added 'undefined' check when reading initial properties for
       .reset()
       - Fixed Firefox warning on .resetProperty()
       - Fixed issue preventing resetProperty() from resetting values
       correctly

    Module
       - Removed unused "childNodesInDom" property

    Overlay
       - Converted center() to use Dom utility
       - Fixed configVisible() to properly detect actual visible/hidden
       status in Internet Explorer, which reports "inherit" for all elements
       by default.
       - Updated onDomResize to properly reapply "context" property
       - Unified scroll/resize handlers so that they fire properly (when the
       event has completed) as opposed to constantly (as seen in Mozilla-
       based browsers)

    Panel
       - Modified modality mask to show before Panel is shown (prior to any
       animation)
       - Modified buildWrapper to eliminate cloning of the initial markup
       module, which fixes issues with select options not maintaining their
       default selections in IE
       - Modality mask is now z-indexed properly so that the mask z-index is
       always one less than the Panel z-index

    Dialog
       - Fixed Connection to get "action" attribute using getAttribute, to
       allow for form fields named "action"
       - Added support for "GET" by retrieving the form "method" rather than
       always defaulting to "POST"

    KeyListener
       - Fixed to work properly with Safari 2.0 by matching against keyCode
       or charCode

*** version 0.11.4 ***

    - Panel: Modality mask is now properly removed from DOM on Panel
    destroy.

*** version 0.11.3 ***

    - Module: Fixed SSL warning issue in IE
    - Overlay: Fixed memory leak related to iframe shim in IE
    - Panel: No focusable elements under the mask can now be tabbed to
    - Panel: Set Panel container overflow to hidden to fix scrolling issue
    in Opera 9

*** version 0.11.2 ***

    - All: JsLint optimization
    - Overlay: Fixed SSL issues with monitorresize property
    - OverlayManager: Fixed z-index incrementing issues
    - Dialog: Form elements called "name" will now function properly
    - Dialog: Removed unnecessary scope:this reference

*** version 0.11.1 ***

    - Tooltip: Removed incorrect logger statement
    - Dialog: Corrected logic that was causing browser lockup in IE for
    SimpleDialog
    - Dialog: Fixed "firstButtom" typo

*** version 0.11.0 ***

    - toString function added to all classes for easy logging
    - YAHOO.extend is now being used for inheritance on all container
    classes
    - Module: monitorresize feature now works on all browsers
    - Module: Fixed bug with image root and isSecure
    - Overlay: Fixed bugs related to IFRAME shim positioning
    - Overlay: center() now works in quirks mode
    - Overlay: Overlay now has a custom destroy() method that also removes
    the IFRAME shim
    - OverlayManager: Fixed bug in the prototype that was preventing
    multiple Managers on one page
    - OverlayManager: focusEvent now fires at all appropriate times
    - Tooltip: context can now be specified as an array, so Tooltips can be
    reused across multiple context elements
    - Tooltip: preventoverlap now functions properly for large context
    elements (i.e, images)
    - Tooltip: fixed bugs regarding setTimeout
    - Tooltip: added mousemove event to allow for more accurate Tooltip
    positioning
    - Panel: added dragEvent for monitoring all event handlers for drag and
    drop
    - Panel: modality mask is now resized on scroll
    - Panel: KeyListeners are now properly destroyed when the Panel is
    destroyed
    - Panel: Header is now sized properly in quirks mode
    - Dialog: Blinking cursor issue is fixed for Firefox
    - Dialog: callback object for Connection is now public (this.callback)
    - Dialog: onsuccess/onfailure properties removed (as a result of the
    public callback object)
    - Dialog: Dialog is now invisible by default
    - Dialog: Buttons are now properly cleaned up on destroy

*** version 0.10.0 ***

* Initial release