$(document).ready(function(){ 
  $("ul.sf-menu").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. 
});