.ui-autocomplete {
    max-height: 150px;
    max-width: auto;
    overflow-y: auto;
    /* prevent horizontal scrollbar */
    overflow-x: hidden;
  }
  /* IE 6 doesn't support max-height
   * we use height instead, but this forces the menu to always be this tall
   */
  * html .ui-autocomplete {
    height: 150px;
  }
  .button_np {     
  border: none;
  cursor: pointer;
  clear: both;
  background-image: url("/np/js/maps.png");
  background-repeat: no-repeat;
  width: 17px;
  zoom: 1.5;
  height: 17px;
  vertical-align: middle;
  z-index: 9999;
  display: :;
            }