toc1an = new Image(38, 17); 
toc1an.src = "image/protibet_2009/obrazky/sipka-zpet2.png"; 		 
toc1aus = new Image(38, 17);	 	
toc1aus.src = "image/protibet_2009/obrazky/sipka-zpet.png";   
toc2an = new Image(17, 17); 
toc2an.src = "image/protibet_2009/obrazky/sipka-vlevo2.png"; 		 
toc2aus = new Image(17, 17);	 	
toc2aus.src = "image/protibet_2009/obrazky/sipka-vlevo.png";  
toc3an = new Image(17, 17); 
toc3an.src = "image/protibet_2009/obrazky/sipka-vpravo2.png"; 		 
toc3aus = new Image(17, 17);	 	
toc3aus.src = "image/protibet_2009/obrazky/sipka-vpravo.png";  
toc4an = new Image(17, 17); 
toc4an.src = "image/protibet_2009/obrazky/sipka-vlevo-prvni2.png"; 		 
toc4aus = new Image(17, 17);	 	
toc4aus.src = "image/protibet_2009/obrazky/sipka-vlevo-prvni.png";  
toc5an = new Image(17, 17); 
toc5an.src = "image/protibet_2009/obrazky/sipka-vpravo-posledni2.png"; 		 
toc5aus = new Image(17, 17);	 	
toc5aus.src = "image/protibet_2009/obrazky/sipka-vpravo-posledni.png";

function img_act(imgName) {
imgOn = eval(imgName + "an.src");
document [imgName].src = imgOn;
}
function img_inact(imgName) {
imgOff = eval(imgName + "aus.src");
document [imgName].src = imgOff;
}