//..... ..... ..... .....

  var _directoryURL="_directory.htm";

  function _showActive(_id) //on MouseOver region
  {
    var _map=document.getElementById("locator");
    with (_map.style)
    {
      cursor="pointer";
    };
  };

  function _setShow(_id) //on MouseDown in region
    //set cookie and go to the directory page, 
    //which will read the cookie and display page dependent on set switches
  {
    _setTransientCookie("Practice", _id);
    window.location.href=_directoryURL;
  };

  function _clear(_id) //on MouseOut of region
  {
    var _map=document.getElementById("locator");
    with (_map.style)
    {
      cursor="crosshair";
    };
  };

  //..... ..... ..... .....//