if (document.images)
   {
     pic1on= new Image(123,67);
     pic1on.src="./buttons-and-banners/button_home2.jpg";  
     pic1off= new Image(123,67);
     pic1off.src="./buttons-and-banners/button_home1.jpg";

     pic2on= new Image(123,67);
     pic2on.src="./buttons-and-banners/button_about2.jpg";  
     pic2off= new Image(123,67);
     pic2off.src="./buttons-and-banners/button_about1.jpg";

     pic3on= new Image(123,67);
     pic3on.src="./buttons-and-banners/button_serve2.jpg";  
     pic3off= new Image(123,67);
     pic3off.src="./buttons-and-banners/button_serve1.jpg";

     pic4on= new Image(123,67);
     pic4on.src="./buttons-and-banners/button_gallery2.jpg";  
     pic4off= new Image(123,67);
     pic4off.src="./buttons-and-banners/button_gallery1.jpg";

     pic5on= new Image(123,67);
     pic5on.src="./buttons-and-banners/button_new2.jpg";  
     pic5off= new Image(123,67);
     pic5off.src="./buttons-and-banners/button_new1.jpg";

     pic6on= new Image(123,67);
     pic6on.src="./buttons-and-banners/button_direct2.jpg";  
     pic6off= new Image(123,67);
     pic6off.src="./buttons-and-banners/button_direct1.jpg";

     pic7on= new Image(123,67);
     pic7on.src="./buttons-and-banners/button_contact2.jpg";  
     pic7off= new Image(123,67);
     pic7off.src="./buttons-and-banners/button_contact1.jpg";
   }

function lightup(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;
    }
 }