function hideAll() {
	document.getElementById('statecny').style.display = "none";
	document.getElementById('statecnyDiv').style.display = "none";
	document.getElementById('hist').style.display = "none";
	document.getElementById('histDiv').style.display = "none";
	document.getElementById('rek').style.display = "none";
	document.getElementById('rekDiv').style.display = "none";
	document.getElementById('let').style.display = "none";
	document.getElementById('letDiv').style.display = "none";
	document.getElementById('clanek').style.display = "none";
	document.getElementById('clanekDiv').style.display = "none";	
	document.getElementById('id1').className = 'nchoosen';
	document.getElementById('id2').className = 'nchoosen';
	document.getElementById('id3').className = 'nchoosen';
	document.getElementById('id4').className = 'nchoosen';
	document.getElementById('id5').className = 'nchoosen';
}
function show(id,first,numb) {
	if (document.getElementById(id).style.display != "block") {
		hideAll() ;
		document.getElementById(id).style.display = "block";
		document.getElementById(id+"Div").style.display = "block";
		showData(first,id+"Div");		
		elem = document.getElementById("id"+numb);
		elem.className = 'choosen';
	}
}