function addBookmark(title,url) {
	if (window.sidebar) {
		window.sidebar.addPanel(title, url,"");
	} else if( document.all ) {
		window.external.AddFavorite( url, title);
	} else if( window.opera && window.print ) {
		return true;
	}
}

function okno(soubor) {
	window.open(soubor,'')
}

function okno(soubor,sirka,vyska)  {
	window.open(soubor,'','toolbar=no,scrollbars=yes,location=no,status=no,width='+sirka+',height='+vyska+',resizable=1')
}

function UkazMenu(element,text) {
    document.getElementById(element).style.display="block";
    if (document.getElementById("polozka-"+element).className!="vybranePodMenu") {
      document.getElementById("polozka-"+element).className="roll";
    }
}

function SkryjMenu(element) {
    document.getElementById(element).style.display="none";
    if (document.getElementById("polozka-"+element).className!="vybranePodMenu") {
      document.getElementById("polozka-"+element).className="";
    }
}