<!--

  if (document.images)
   {
     pic1on= new Image(175,50);
     pic1on.src="images/buttons/nav_on_01.jpg";
     pic2on= new Image(175,50);
     pic2on.src="images/buttons/nav_on_02.jpg";
     pic3on= new Image(175,50);
     pic3on.src="images/buttons/nav_on_03.jpg";
     pic4on= new Image(175,50);
     pic4on.src="images/buttons/nav_on_04.jpg";
     pic5on= new Image(175,50);
     pic5on.src="images/buttons/nav_on_05.jpg";

     pic1off= new Image(175,50);
     pic1off.src="images/buttons/nav_off_01.jpg";
     pic2off= new Image(175,50);
     pic2off.src="images/buttons/nav_off_02.jpg";
     pic3off= new Image(175,50);
     pic3off.src="images/buttons/nav_off_03.jpg";
     pic4off= new Image(175,50);
     pic4off.src="images/buttons/nav_off_04.jpg";
     pic5off= new Image(175,50);
     pic5off.src="images/buttons/nav_off_05.jpg";
   

     tnav1on= new Image(120,17);
     tnav1on.src="images/buttons/topnav_cp_on.gif";
     tnav2on= new Image(99,17);
     tnav2on.src="images/buttons/topnav_go_on.gif";
     tnav3on= new Image(99,17);
     tnav3on.src="images/buttons/topnav_gf_on.gif";
     tnav4on= new Image(99,17);
     tnav4on.src="images/buttons/topnav_di_on.gif";
     tnav5on= new Image(99,17);
     tnav5on.src="images/buttons/topnav_cu_on.gif";
     tnav6on= new Image(75,17);
     tnav6on.src="images/buttons/topnav_ho_on.gif";
     
     tnav1off= new Image(120,17);
     tnav1off.src="images/buttons/topnav_cp_off.gif";
     tnav2off= new Image(99,17);
     tnav2off.src="images/buttons/topnav_go_off.gif";
     tnav3off= new Image(99,17);
     tnav3off.src="images/buttons/topnav_gf_off.gif";
     tnav4off= new Image(99,17);
     tnav4off.src="images/buttons/topnav_di_off.gif";
     tnav5off= new Image(99,17);
     tnav5off.src="images/buttons/topnav_cu_off.gif";
     tnav6off= new Image(75,17);
     tnav6off.src="images/buttons/topnav_ho_off.gif";

  }

function turnon(imgName)
 {
   if (document.images)
    {
      imgOn=eval(imgName + "on.src");
      document[imgName].src= imgOn;
    }
 }

function turnoff(imgName)
 {
   if (document.images)
    {
      imgOff=eval(imgName + "off.src");
      document[imgName].src= imgOff;
    }
 }

//-->