rys1on = new Image();
	rys1on.src = "img/firma2.jpg";
	rys1off = new Image();
	rys1off.src = "img/firma1.jpg";
	
	rys2on = new Image();
	rys2on.src = "img/oferta2.jpg";
	rys2off = new Image();
	rys2off.src = "img/oferta1.jpg";
	
	rys3on = new Image();
	rys3on.src = "img/kontakt2.jpg";
	rys3off = new Image();
	rys3off.src = "img/kontakt1.jpg";
	
	
	function zmiana1(imgName)
	{
		imgOn = eval(imgName + "on.src");
		document [imgName].src = imgOn;
	}


	function zmiana2(imgName)
	{
	
		imgOff = eval(imgName + "off.src")
		document [imgName].src = imgOff;
	}