browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
 if ((browserName == "Netscape" && browserVer >= 3) || (browserName == "Microsoft Internet Explorer" && browserVer >= 4)) version = "n3";
   else version = "n2"
   if (version == "n3") {



	

	knapp1on = new Image(0,0);
	knapp1on.src = "img/s522a.png";
	knapp1off = new Image(0,0);
	knapp1off.src = "img/s522.png";

	knapp2on = new Image(0,0);
	knapp2on.src = "img/s523a.png";
	knapp2off = new Image(0,0);
	knapp2off.src = "img/s523.png";

	knapp3on = new Image(0,0);
	knapp3on.src = "img/s522a.png";
	knapp3off = new Image(0,0);
	knapp3off.src = "img/s522.png";

	knapp4on = new Image(0,0);
	knapp4on.src = "img/s523a.png";
	knapp4off = new Image(0,0);
	knapp4off.src = "img/s523.png";
	
	knapp5on = new Image(0,0);
	knapp5on.src = "img/s522a.png";
	knapp5off = new Image(0,0);
	knapp5off.src = "img/s522.png";

	knapp6on = new Image(0,0);
	knapp6on.src = "img/s523a.png";
	knapp6off = new Image(0,0);
	knapp6off.src = "img/s523.png";
	
	knapp7on = new Image(0,0);
	knapp7on.src = "img/s522a.png";
	knapp7off = new Image(0,0);
	knapp7off.src = "img/s522.png";

	knapp8on = new Image(0,0);
	knapp8on.src = "img/s523a.png";
	knapp8off = new Image(0,0);
	knapp8off.src = "img/s523.png";	
	
	knapp9on = new Image(0,0);
	knapp9on.src = "img/s522a.png";
	knapp9off = new Image(0,0);
	knapp9off.src = "img/s522.png";

	knapp10on = new Image(0,0);
	knapp10on.src = "img/s523a.png";
	knapp10off = new Image(0,0);
	knapp10off.src = "img/s523.png";
	
	knapp11on = new Image(0,0);
	knapp11on.src = "img/s522a.png";
	knapp11off = new Image(0,0);
	knapp11off.src = "img/s522.png";

	knapp12on = new Image(0,0);
	knapp12on.src = "img/s523a.png";
	knapp12off = new Image(0,0);
	knapp12off.src = "img/s523.png";

	knapp13on = new Image(0,0);
	knapp13on.src = "img/g1a.png";
	knapp13off = new Image(0,0);
	knapp13off.src = "img/g1.png";	

	knapp14on = new Image(0,0);
	knapp14on.src = "img/g2a.png";
	knapp14off = new Image(0,0);
	knapp14off.src = "img/g2.png";	

	knapp15on = new Image(0,0);
	knapp15on.src = "img/g3a.png";
	knapp15off = new Image(0,0);
	knapp15off.src = "img/g3.png";	

	knapp16on = new Image(0,0);
	knapp16on.src = "img/g4a.png";
	knapp16off = new Image(0,0);
	knapp16off.src = "img/g4.png";	

	knapp17on = new Image(0,0);
	knapp17on.src = "img/g5a.png";
	knapp17off = new Image(0,0);
	knapp17off.src = "img/g5.png";	

	knapp18on = new Image(0,0);
	knapp18on.src = "img/g6a.png";
	knapp18off = new Image(0,0);
	knapp18off.src = "img/g6.png";		
	
	

}

function img_act(imgName)  {
   if (version == "n3")   {
   imgOn = eval(imgName + "on.src");
   document [imgName].src = imgOn;
   }
}

function img_inact(imgName)   {
   if (version == "n3") {
   imgOff = eval(imgName + "off.src");
   document [imgName].src = imgOff;
   }
}