aOn=new Image;aOn.src = "grafika/butony/01[1].jpg";aOff=new Image;aOff.src = "grafika/butony/01.jpg";
bOn=new Image;bOn.src = "grafika/butony/02[1].jpg";bOff=new Image;bOff.src = "grafika/butony/02.jpg";
cOn=new Image;cOn.src = "grafika/butony/03[1].jpg";cOff=new Image;cOff.src = "grafika/butony/03.jpg";
dOn=new Image;dOn.src = "grafika/butony/04[1].jpg";dOff=new Image;dOff.src = "grafika/butony/04.jpg";
eOn=new Image;eOn.src = "grafika/butony/05[1].jpg";eOff=new Image;eOff.src = "grafika/butony/05.jpg";

function switchOn(imgName){
  imgOn = eval(imgName + "On.src");
  document [imgName].src=imgOn;
}

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