$(document).ready(function() {
  //add class to last subnav item
  $('#subnav ul ul li:last-child, #main-nav ul li:last-child').addClass('last');
  
  //intialize submenu
  $("ul.sf-menu").supersubs({ 
    minWidth:    10,   // min width in em 
    maxWidth:    20,   // max width in em 
    extraWidth:  1
  }).superfish({
      autoArrows:  false
  });

});