if (document.images)
		{ 
			img1on = new Image;
			img1off = new Image;
			img2on = new Image;
			img2off = new Image;
			img3on = new Image;
			img3off = new Image;
			img4on = new Image;
			img4off = new Image; 
			img5on = new Image;
			img5off = new Image; 
			img6on = new Image;
			img6off = new Image; 
			
			img1on.src = "pics/b_01_on.gif";
			img1off.src = "pics/b_01_off.gif";
			img2on.src = "pics/b_02_on.gif";
			img2off.src = "pics/b_02_off.gif";
			img3on.src = "pics/b_03_on.gif";
			img3off.src = "pics/b_03_off.gif";
			img4on.src = "pics/b_04_on.gif";
			img4off.src = "pics/b_04_off.gif";
			img5on.src = "pics/b_05_on.gif";
			img5off.src = "pics/b_05_off.gif";
			img6on.src = "pics/b_06_on.gif";
			img6off.src = "pics/b_06_off.gif";
		}
		
		function img_act(imgName) {
		if (document.images)
		{ imgOn = eval (imgName + "on.src");
		document [imgName].src = imgOn; } }
		
		function img_inact(imgName) {
		if (document.images)
		{ imgOff = eval(imgName + "off.src");
		document [imgName].src = imgOff; } }