function pageload()
 {
	if (document.images)
		{
		pic1on = new Image(50,26);
		pic1on.src="images/nav_clicked_04.gif";
		pic2on = new Image(103,26);
		pic2on.src="images/nav_clicked_05.gif";
		pic3on = new Image(54,26);
		pic3on.src="images/homepage2_06.gif";
		pic4on = new Image(72,26);
		pic4on.src="images/homepage2_07.gif";
		pic5on = new Image(132,26);
		pic5on.src="images/homepage2_08.gif";
		pic1off = new Image(50,26);
		pic1off.src="images/nav_unclicked_04.gif";
		pic2off = new Image(103,26);
		pic2off.src="images/nav_unclicked_05.gif";
		pic3off = new Image(54,26);
		pic3off.src="images/homepage2_06.gif";
		pic4off = new Image(72,26);
		pic4off.src="images/homepage2_07.gif";
		pic5off = new Image(132,26);
		pic5off.src="images/homepage2_08.gif";
	}
}
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;
    }
 }
pageload();