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    JS9 supports two styles of menubar: the default classic style
    (all top-level menus are displayed in the menubar) and a mac style
    (some top-level menus are in the View menu). Specify the style globally
    by setting JS9.globalOpts.menubarStyle to "mac" or "classic".
    Specify a style for specific menubar by using the data-style
    attribute on that element.
     You also can display user-defined menus by setting the JS9.globalOpts.userMenuBar to an array of menu options, and then either setting JS9.globalOpts.userMenus to true for all menubars or setting the data-usermenus attribute to "true" for a specific menubar. See js9usermenus.js for an example of a user menubar array. Note that supermenus support styles and user menus, as shown in the examples below the image displays.  | 
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    A classic menubar displaying all top-level menus:
     
 
    Super-menus of style classic, mac, mac/user to control both displays: 
 
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    A Mac-style menubar (top-level menus in View) and user-defined menus:
     
 
 
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