w2layout = function (options) {
        this.box     = null;        // DOM Element that holds the element
        this.name    = null;        // unique name for w2ui
        this.panels  = [];
        this.tmp     = {};

        this.padding = 1;        // panel padding
        this.resizer = 4;        // resizer width or height
        this.style   = '';

        this.onShow         = null;
        this.onHide         = null;
        this.onResizing     = null;
        this.onResizerClick = null;
        this.onRender       = null;
        this.onRefresh      = null;
        this.onResize       = null;
        this.onDestroy      = null;

        $.extend(true, this, w2obj.layout, options);
    }
*********************************************************************
  Library: Web 2.0 UI for jQuery (using prototypical inheritance)
  - Following objects defined
       - w2layout        - layout widget
       - $().w2layout    - jQuery wrapper
  - Dependencies: jQuery, w2utils, w2toolbar, w2tabs

== NICE TO HAVE ==
  - onResize for the panel
  - add more panel title positions (left=rotated, right=rotated, bottom)
  - bug: resizer is visible (and onHover) when panel is hidden.
  - bug: when you assign content before previous transition completed.

**********************************************************************