function ShowGeneral(prvek) {
	document.getElementById("kata_23").style.display="none";
	document.getElementById("kata_1").style.display="none";
	document.getElementById("kata_13").style.display="none";
	document.getElementById("kata_7").style.display="none";
	document.getElementById("kata_38").style.display="none";
	document.getElementById("kata_19").style.display="none";
	document.getElementById("kata_18").style.display="none";
	var x=document.getElementById(prvek);
	x.style.display="block";
}