if (document.images)
   {
	 
     homeOn= new Image(51,18);
     homeOn.src="images/nav/home-yellow.gif"; 
     
     webOn= new Image(104,18);
     webOn.src="images/nav/web-yellow.gif";
     
     printOn= new Image(120,18);
     printOn.src="images/nav/print-yellow.gif";
     
     funOn= new Image(90,18);
     funOn.src="images/nav/fun-yellow.gif";
	 
	 emailOn= new Image(111,18);
     emailOn.src="images/nav/contact-yellow.gif";
	 
	 clientOn= new Image(121,18);
     clientOn.src="images/nav/client-yellow.gif";



     
     
     homeOff= new Image(51,18);
     homeOff.src="images/nav/home-white.gif";
     
     webOff= new Image(104,18);
     webOff.src="images/nav/web-white.gif";
     
     printOff= new Image(120,18);
     printOff.src="images/nav/print-white.gif";
     
     funOff= new Image(90,18);
     funOff.src="images/nav/fun-white.gif";
     
     emailOff= new Image(111,18);
     emailOff.src="images/nav/contact-white.gif";
	 
	 clientOff= new Image(121,18);
     clientOff.src="images/nav/client-white.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;
    }
 }