if (document.images)
{
 pic1on = new Image(98,48);
 pic1on.src="../images/navigation/b1.jpg";  

 pic1off = new Image(98,48);
 pic1off.src="../images/navigation/b11.jpg";  
 
  pic2on = new Image(98,48);
 pic2on.src="../images/navigation/b2.jpg";  

 pic2off = new Image(98,48);
 pic2off.src="../images/navigation/b22.jpg"; 
 
  pic3on = new Image(98,48);
 pic3on.src="../images/navigation/b3.jpg";    

 pic3off = new Image(98,48);
 pic3off.src="../images/navigation/b33.jpg"; 
 
  pic4on = new Image(98,48);
 pic4on.src="../images/navigation/b4.jpg";    

 pic4off = new Image(98,48);
 pic4off.src="../images/navigation/b44.jpg";  
 
  pic5on = new Image(98,48);
 pic5on.src="../images/navigation/b5.jpg";    

 pic5off = new Image(98,48);
 pic5off.src="../images/navigation/b55.jpg";  
 
  pic6on = new Image(98,48);
 pic6on.src="../images/navigation/b6.jpg";   

 pic6off = new Image(98,48);
 pic6off.src="../images/navigation/b66.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;
		}
	}