function rollover(which) {
	document.getElementById(which).src = "../layout/barevne/" + which.substr(3) + ".gif";
}
function rollout(which) {
	document.getElementById(which).src = "../layout/sede/" + which.substr(3) + ".gif";
}
function windowPicture(url) {
	window.open(url,"_blank","toolbar=no,scrollbars=no,location=no,status=no,resizable=yes") ;
}