if (document.images)
   {
	 
/* Navigation  */   
	/* Home Page  */   
     pointsOn= new Image(171,78);
     pointsOn.src="images/earnPointsOver.gif";  
	 
     loadOn= new Image(171,78); 
     loadOn.src="images/loadCardOver.gif"; 
	 
	 shopOn= new Image(171,78); 
     shopOn.src="images/shopOver.gif"; 
	 
	 newOn= new Image(105,33); 
     newOn.src="images/whatsNewOver.gif"; 
	 
	 whatOn= new Image(105,33); 
     whatOn.src="images/whatItIsOver.gif";

	 howOn= new Image(228,33); 
     howOn.src="images/howItWorksOver.gif";	 
	 
	 /* Home Page Off States  */
     pointsOff= new Image(171,78);
     pointsOff.src="images/earnPoints.gif";  
	 
     loadOff= new Image(171,78); 
     loadOff.src="images/loadCard.gif"; 
	 
	 shopOff= new Image(171,78); 
     shopOff.src="images/shop.gif"; 
	 
	 newOff= new Image(105,33); 
     newOff.src="images/whatsNew.gif";
	 
	 whatOff= new Image(105,33); 
     whatOff.src="images/whatItIs.gif";
	 
	 howOff= new Image(228,33); 
     howOff.src="images/howItWorks.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;
    }
 }