// Active images
	img01on = new Image();
	img01on.src = "pics/nv/nv_00_01_a.gif";
	img02on = new Image();
	img02on.src = "pics/nv/nv_00_02_a.gif";
	img03on = new Image();
	img03on.src = "pics/nv/nv_00_03_a.gif";
	img04on = new Image();
	img04on.src = "pics/nv/nv_00_04_a.gif";
	img05on = new Image();
	img05on.src = "pics/nv/nv_00_05_a.gif";
	
	img1on = new Image();
	img1on.src = "pics/nv/nv_01_a.gif";
	img2on = new Image(); 
	img2on.src = "pics/nv/nv_02_a.gif";
	img3on = new Image();
	img3on.src = "pics/nv/nv_03_a.gif";
	img4on = new Image();
	img4on.src = "pics/nv/nv_04_a.gif";
	img5on = new Image();
	img5on.src = "pics/nv/nv_05_a.gif";
	
	// Inactive images
	img01off = new Image();
	img01off.src = "pics/nv/nv_00_01_i.gif";
	img02off = new Image();
	img02off.src = "pics/nv/nv_00_02_i.gif";
	img03off = new Image();
	img03off.src = "pics/nv/nv_00_03_i.gif";
	img04off = new Image();
	img04off.src = "pics/nv/nv_00_04_i.gif";
	img05off = new Image();
	img05off.src = "pics/nv/nv_00_05_i.gif";
	
	img1off = new Image();
	img1off.src = "pics/nv/nv_01_i.gif";
	img2off = new Image(); 
	img2off.src = "pics/nv/nv_02_i.gif";
	img3off = new Image();
	img3off.src = "pics/nv/nv_03_i.gif";
	img4off = new Image();
	img4off.src = "pics/nv/nv_04_i.gif";
	img5off = new Image();
	img5off.src = "pics/nv/nv_05_i.gif";
	
	
	function imgOn(imgName) {
	   if (document.images) {
	       document[imgName].src = eval(imgName + "on.src");
	        }
	}
	
	function imgOff(imgName) {
	        if (document.images) {
	            document[imgName].src = eval(imgName + "off.src");
	        }
	}