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_masg.php?ident="+ifr+"&venref="+venref+"&idc="+d.getTime();
  }
  catch(err) {}
}

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

function Flagborder(prvek,brd) {
  try {
    if (!prvek) return false;
    if (brd) prvek.border = 1;
    else prvek.border = 0;
  }
  catch(err) {}
}