function Close(n) {
     var i;
      for (i=1; ; i++)
       {
        var id = "xx_" + i.toString(); //
        var id2 = "yy_" + i.toString(); //
        var element = document.getElementById(id);
        var element2 = document.getElementById(id2);
        
        if (!element) return;
        if (i == n)
          element.style.display = element.style.display == "block" ? "block" : "block";
        else
          element.style.display = "none";
          
          if (!element2) return;
        if (i == n)
          element2.className = element2.className == "active" ? "active" : "active";
        else
          element2.className = "";
       }
      }