function openQTSmall(url) {
  qtwin = window.open(url,'Tour','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=325,height=255');
  qtwin.focus();
}
function openQTBig(url) {
  qtwinb = window.open(url,'Tour_big','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=645,height=495');
  qtwinb.focus();
}