codice:
function mmLoadMenus() {
  if (window.mm_menu_0507112840_0) return;
  //la bottega dei golosi
  window.mm_menu_0507112840_0 = new Menu("root",125,13,"Verdana, Arial, Helvetica, sans-serif",9,"#660000","#FFFFB4","#FFFFB4","#660000","left","middle",3,0,1000,-5,7,true,true,true,0,false,false);
  for (i=0;i<golosi.length;i++){
	  splittagolosi=golosi[i].split("/")
  mm_menu_0507112840_0.addMenuItem(splittagolosi[0],"location='ns.asp?wci=deptlist&"+lng+"&cur=3057&did="+splittagolosi[1]+"&sr=0&"+cod+"'");
  }
  
   mm_menu_0507112840_0.hideOnMouseOut=true;
   mm_menu_0507112840_0.bgColor='#666666';//linea divisoria
   mm_menu_0507112840_0.menuBorder=1;//spessore bordo
   mm_menu_0507112840_0.menuLiteBgColor='#FFFFCC';//bordo top e right
   mm_menu_0507112840_0.menuBorderBgColor='#660000';//bordo left e bottom


  //vini e distillati
  window.mm_menu_0507113630_0 = new Menu("root",120,13,"Verdana, Arial, Helvetica, sans-serif",9,"#660000","#FFFFB4","#FFFFB4","#660000","left","middle",3,0,1000,-5,7,true,true,true,0,true,true);
   for (i=0;i<vini.length;i++){
	  splittavini=vini[i].split("/")
  mm_menu_0507113630_0.addMenuItem(splittavini[0],"location='ns.asp?wci=deptlist&"+lng+"&cur=3057&did="+splittavini[1]+"&sr=0&"+cod+"'");
    }
  
   mm_menu_0507113630_0.hideOnMouseOut=true;
   mm_menu_0507113630_0.bgColor='#666666';
   mm_menu_0507113630_0.menuBorder=1;
   mm_menu_0507113630_0.menuLiteBgColor='#FFFFCC';
   mm_menu_0507113630_0.menuBorderBgColor='#660000';

  //Artigianato tipico
  window.mm_menu_0507115307_0 = new Menu("root",210,13,"Verdana, Arial, Helvetica, sans-serif",9,"#660000","#FFFFB4","#FFFFB4","#660000","left","middle",3,0,1000,-5,7,true,true,true,0,true,true);
   for (i=0;i<artigianato.length;i++){
	  splittaartigianato=artigianato[i].split("/")
  mm_menu_0507115307_0.addMenuItem(splittaartigianato[0],"location='ns.asp?wci=deptlist&"+lng+"&cur=3057&did="+splittaartigianato[1]+"&sr=0&"+cod+"'");
   }
   mm_menu_0507115307_0.hideOnMouseOut=true;
   mm_menu_0507115307_0.bgColor='#666666';
   mm_menu_0507115307_0.menuBorder=1;
   mm_menu_0507115307_0.menuLiteBgColor='#FFFFCC';
   mm_menu_0507115307_0.menuBorderBgColor='#660000';

  //elettronica e computer 
  window.mm_menu_0507114744_0 = new Menu("root",160,13,"Verdana, Arial, Helvetica, sans-serif",9,"#660000","#FFFFB4","#FFFFB4","#660000","left","middle",3,0,1000,-5,7,true,true,true,0,true,true);
  for (i=0;i<elettronica.length;i++){
	  splittaelettronica=elettronica[i].split("/")
  mm_menu_0507114744_0.addMenuItem(splittaelettronica[0],"location='ns.asp?wci=deptlist&"+lng+"&cur=3057&did="+splittaelettronica[1]+"&sr=0&"+cod+"'");
  }
   mm_menu_0507114744_0.hideOnMouseOut=true;
   mm_menu_0507114744_0.bgColor='#666666';
   mm_menu_0507114744_0.menuBorder=1;
   mm_menu_0507114744_0.menuLiteBgColor='#FFFFCC';
   mm_menu_0507114744_0.menuBorderBgColor='#660000';

  //oreficerie e gioiellerie
  window.mm_menu_0507115123_0 = new Menu("root",130,13,"Verdana, Arial, Helvetica, sans-serif",9,"#660000","#FFFFB4","#FFFFB4","#660000","left","middle",3,0,1000,-5,7,true,true,true,0,true,true);
  for (i=0;i<orologi.length;i++){
	  splittaorologi=orologi[i].split("/")
  mm_menu_0507115123_0.addMenuItem(splittaorologi[0],"location='ns.asp?wci=deptlist&"+lng+"&cur=3057&did="+splittaorologi[1]+"&sr=0&"+cod+"'");
  }
  
   mm_menu_0507115123_0.hideOnMouseOut=true;
   mm_menu_0507115123_0.bgColor='#666666';
   mm_menu_0507115123_0.menuBorder=1;
   mm_menu_0507115123_0.menuLiteBgColor='#FFFFCC';
   mm_menu_0507115123_0.menuBorderBgColor='#660000';

  //abbigliamento
  window.mm_menu_0507115756_0 = new Menu("root",120,13,"Verdana, Arial, Helvetica, sans-serif",9,"#660000","#FFFFB4","#FFFFB4","#660000","left","middle",3,0,1000,-5,7,true,true,true,0,true,true);
  for (i=0;i<abbigliamento.length;i++){
	  splittaabbigliamento=abbigliamento[i].split("/")
  mm_menu_0507115756_0.addMenuItem(splittaabbigliamento[0],"location='ns.asp?wci=deptlist&"+lng+"&cur=3057&did="+splittaabbigliamento[1]+"&sr=0&"+cod+"'");
  }
   mm_menu_0507115756_0.hideOnMouseOut=true;
   mm_menu_0507115756_0.bgColor='#666666';
   mm_menu_0507115756_0.menuBorder=1;
   mm_menu_0507115756_0.menuLiteBgColor='#FFFFCC';
   mm_menu_0507115756_0.menuBorderBgColor='#660000';    
   
   //erboristerie e cosmesi
  window.mm_menu_0507115858_0 = new Menu("root",190,13,"Verdana, Arial, Helvetica, sans-serif",9,"#660000","#FFFFB4","#FFFFB4","#660000","left","middle",3,0,1000,-5,7,true,true,true,0,true,true);
  for (i=0;i<erboristeria.length;i++){
	  splittaerboristeria=erboristeria[i].split("/")
  mm_menu_0507115858_0.addMenuItem(splittaerboristeria[0],"location='ns.asp?wci=deptlist&"+lng+"&cur=3057&did="+splittaerboristeria[1]+"&sr=0&"+cod+"'");
  }
   mm_menu_0507115858_0.hideOnMouseOut=true;
   mm_menu_0507115858_0.bgColor='#666666';
   mm_menu_0507115858_0.menuBorder=1;
   mm_menu_0507115858_0.menuLiteBgColor='#FFFFCC';
   mm_menu_0507115858_0.menuBorderBgColor='#660000';

  //Antiquariato e modernariato
  window.mm_menu_0507115026_0 = new Menu("root",200,13,"Verdana, Arial, Helvetica, sans-serif",9,"#660000","#FFFFB4","#FFFFB4","#660000","left","middle",3,0,1000,-5,7,true,true,true,0,true,true);
  for (i=0;i<antiquariato.length;i++){
	  splittaantiquariato=antiquariato[i].split("/")
  mm_menu_0507115026_0.addMenuItem(splittaantiquariato[0],"location='ns.asp?wci=deptlist&"+lng+"&cur=3057&did="+splittaantiquariato[1]+"&sr=0&"+cod+"'");
  }
  
   mm_menu_0507115026_0.hideOnMouseOut=true;
   mm_menu_0507115026_0.bgColor='#666666';
   mm_menu_0507115026_0.menuBorder=1;
   mm_menu_0507115026_0.menuLiteBgColor='#FFFFCC';
   mm_menu_0507115026_0.menuBorderBgColor='#660000';

//mm_menu_0507115858_0.writeMenus();

  //Offerta eprodotti sottocosto
  window.mm_menu_0507115959_0 = new Menu("root",130,13,"Verdana, Arial, Helvetica, sans-serif",9,"#660000","#FFFFB4","#FFFFB4","#660000","left","middle",3,0,1000,-5,7,true,true,true,0,true,true);
  for (i=0;i<offerta.length;i++){
	  splittaofferta=offerta[i].split("/")
  mm_menu_0507115959_0.addMenuItem(splittaofferta[0],"location='ns.asp?wci=deptlist&"+lng+"&cur=3057&did="+splittaofferta[1]+"&sr=0&"+cod+"'");
  }
  
   mm_menu_0507115959_0.hideOnMouseOut=true;
   mm_menu_0507115959_0.bgColor='#666666';
   mm_menu_0507115959_0.menuBorder=1;
   mm_menu_0507115959_0.menuLiteBgColor='#FFFFCC';
   mm_menu_0507115959_0.menuBorderBgColor='#660000';

mm_menu_0507115858_0.writeMenus();



}
come si nota le parti messe in neretto precedentemente sono le stesse per tutti i menu, tranne che per il numero identificativo...

a me serve unificarle per poterle gestire una per tutte!