function windowOpen(_link, sizeX, sizeY) {
	sizeX += 20;
	switch (navigator.appName) {
	case 'Opera':
	case 'Netscape':
		sizeY += 45;
		break;
	default:
		sizeY += 75;
		break;
	}
	var positionX = (screen.width - sizeX) / 2;
	var positionY = (screen.height - sizeY) / 2;
	window.open(_link,
		'Terming',
		'menubar=no,toolbar=no,location=no,directories=no,status=no,scrollbars=no,resizable=no,copyhistory=no,width=' + sizeX + ',height=' + sizeY +
		',left=' + positionX + ',top=' + positionY
	);
}


function bookmark(url,title) {
	if ( (navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4) ) {
		window.external.AddFavorite(url,title);
	} else if (navigator.appName == "Netscape") {
		window.sidebar.addPanel(title,url,"");
	} else {
		alert('Zmáčkněte CTRL-D (Netscape) nebo CTRL-T (Opera) pro založení této stránky do oblíbených položek.');
	}
}