function otevriOkno(url, jmeno, w, h) {  
  popupWin = window.open(url, jmeno, 'resizable=1,top=20,left=20,menubar=0,scrollbars=yes,width=' + w + ',height=' + h);
}
function prn() {
document.write('\074a href=\"javascript:goprn();\"class=\"copyrightstreda\"\076tisknout str�nku\074/a\076 ');
}
function goprn() {
	if(window.print) {
		window.print();
	}
	else {
		alert("Str�nky jsou p�ipraveny pro tisk.\nNyn� m�ete zvolit polo�ku Tisk/Print ve Va�em prohl�e�i.");
	} 
}
function zpet() {
document.write('\074input type="button" value="Zp�t" onclick="history.back()" /\076 ');
}

function showElement(elementName,switchName) {
	if (document.getElementById(switchName).checked) {
		document.getElementById(elementName).style.display = "block";
	}
	if  (document.getElementById(switchName).checked == false) {
		document.getElementById(elementName).style.display = "none";
	}
}