function MenuOn(x){
  obj=document.getElementById("aktywnaTablica"+x).style.visibility="visible";
}
function MenuOff(x){
  obj=document.getElementById("aktywnaTablica"+x).style.visibility="hidden";
}
function SwitchWidocznosc(x){
	if(x == 1){
	    obj=document.getElementById("kopia1").style.visibility="hidden";
	    obj=document.getElementById("kopia2").style.visibility="visible";
	}else if(x == 2){
	    obj=document.getElementById("kopia2").style.visibility="hidden";
	    obj=document.getElementById("kopia1").style.visibility="visible";
	}
}
function setMenuOn(x){
  obj=document.getElementById("pozycjaMenu"+x).style.background="#DDDDDD";
}
function setMenuOff(x){
  obj=document.getElementById("pozycjaMenu"+x).style.background="";
}
function onCursorHand(x){
	if (x==1) {document.body.style.cursor="pointer";}
	else	{document.body.style.cursor="default";}
}

function dropReferer(){
   var divReferer = document.getElementById('refere');
   divReferer.innerHTML = document.referrer;
}