<!--

if (document.images)
{
     homeon= new Image(130,30);
     homeon.src="images/nav-home-over.png";

     abouton= new Image(130,30);
     abouton.src="images/nav-about-over.png";

     portfolioon= new Image(130,30);
     portfolioon.src="images/nav-portfolio-over.png";

     contacton= new Image(130,30);
     contacton.src="images/nav-contact-over.png";


     homeoff= new Image(130,30);
     homeoff.src="images/nav-home-out.png";

     aboutoff= new Image(130,30);
     aboutoff.src="images/nav-about-out.png";

     portfoliooff= new Image(130,30);
     portfoliooff.src="images/nav-portfolio-out.png";

     contactoff= new Image(130,30);
     contactoff.src="images/nav-contact-out.png";

}

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;
    }
 }
 

//-->