var obraz=null;
function zvetsi(base,cesta,titul,alt,x,y,jazyk) {
	var sb="no";
	if (x>(screen.width-50)) {
		x=(screen.width-50);
		sb="yes";
	}
	if (y>(screen.height-50)) {
		y=(screen.height-50);
		sb="yes";
	}
	var winl = (screen.width-x)/2;
	var wint = (screen.height-y)/2;
	obraz=window.open("/zvetsi_nav.php?nazev="+titul+"&cesta="+cesta+"&alt="+alt+"&jazyk="+jazyk, "obraz", "width="+(x)+", height="+(y)+", top="+wint+", left="+winl+", menubar=no, directories=no, toolbar=no, location=no, status=no, scrollbars="+sb+", resizable=yes");
	obraz.window.focus();
}
var vokno=null;
function okno(prm, x, y) {
	var sb="yes";
	if (!x) var x=500;
	if (!y) var y=600;
	if (x>(screen.width-100)) {
		x=(screen.width-100);
		sb="yes";
	}
	if (y>(screen.height-100)) {
		y=(screen.height-100);
		sb="yes";
	}
	var winl = (screen.width-x)/2;
	var wint = (screen.height-y)/2;
	vokno=window.open("/okno.php"+prm, "vokno", "width="+(x)+", height="+(y)+", top="+wint+", left="+winl+", menubar=no, directories=no, toolbar=no, location=no, status=no, scrollbars="+sb+", resizable=yes");
	vokno.window.focus();
}

function chtext(prm) {
	var ch = document.getElementById(prm);
	ch.innerHTML="Data budou aktualizována po znovu načtení stránky.";
}

function chboxtd(prm) {
	var ch = document.getElementById(prm);
	if (ch.checked) ch.checked=false;
	else ch.checked=true;
}

function bothsize() {
	var ch = document.getElementById("cont");
	var ch2 = document.getElementById("left");
	if (!ch2) return;
	if (!ch) {
		ch = document.getElementById("cont2");
		if (!ch) return;
	}

	var he = ch.offsetHeight;
	var he2 = ch2.offsetHeight;
	if (he>he2) ch2.style.height = he + 'px';
	else ch.style.height = he2 + 'px';
}

if (window.attachEvent) window.attachEvent('onload', bothsize)
else window.onload = bothsize;