$(document).ready(function () {
    $("ul.groupMenu").supersubs({
        minWidth: 12,   // minimum width of sub-menus in em units 
        maxWidth: 27,   // maximum width of sub-menus in em units 
        extraWidth: 1     // extra width can ensure lines don't sometimes turn over 
        // due to slight rounding differences and font-family 
    }).superfish();  // call supersubs first, then superfish, so that subs are 
    // not display:none when measuring. Call before initialising 
    // containing tabs for same reason. 
});