if (document.images)
 {
   newson= new Image(100,75);
   newson.src="img/newstitlealtsm.jpg";
   bioon= new Image(100,75);
   bioon.src="img/biotitlealtsm.jpg";
   gigson= new Image(100,75);
   gigson.src="img/gigstitlealtsm.jpg";
   musicon= new Image(100,75);
   musicon.src="img/musictitlealtsm.jpg";
   galleryon= new Image(100,75);
   galleryon.src="img/gallerytitlealtsm.jpg";
   linkson= new Image(100,75);
   linkson.src="img/linkstitlealtsm.jpg";
   contacton= new Image(100,75);
   contacton.src="img/contacttitlealtsm.jpg";
   gbookon= new Image(100,75);
   gbookon.src="img/gbooktitlealtsm.jpg"

   newsoff= new Image(100,75);
   newsoff.src="img/newstitlesm.jpg";
   biooff= new Image(100,75);
   biooff.src="img/biotitlesm.jpg";
   gigsoff= new Image(100,75);
   gigsoff.src="img/gigstitlesm.jpg";
   musicoff= new Image(100,75);
   musicoff.src="img/musictitlesm.jpg";
   galleryoff= new Image(100,75);
   galleryoff.src="img/gallerytitlesm.jpg";
   linksoff= new Image(100,75);
   linksoff.src="img/linkstitlesm.jpg";
   contactoff= new Image(100,75);
   contactoff.src="img/contacttitlesm.jpg";
   gbookoff= new Image(100,75);
   gbookoff.src="img/gbooktitlesm.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;
  }
     }