function NewWindowObecne(script, _name, _height, _width, _top, _left) {
 newwindow = window.open(script+(new Date).getTime(), _name,'height='+_height+',width='+_width+',top='+_top+',left='+_left+',scrollbars,resizable');
 newwindow.focus();
}

function gref(ifr) {
 try {
  var ifrm = window.document.getElementById(ifr);
  var venref = document.referrer;
  var d = new Date();
  ifrm.src = "http://historicke.ic.cz/sc/cntr_historicke.php?ident="+ifr+"&venref="+venref+"&idc="+d.getTime();
 }
 catch(err) {}
}

function Window_close() {
 window.close();
}