function popUp (sURL, sName, x, y, dx, dy) {
  if(!sURL) return;
  window.open(sURL, sName, 'left='+x+',top='+y+',width='+dx+',height='+dy+',scrollbars=1,resizable=1');
}

function OpenPreview(sURL) {
  if(!sURL) return;
  var w_s = 25;
  var h_s = 25;
  var w = window.screen.width;
  var h = window.screen.height;
  popUp(sURL,'PreviewWin', w_s, h_s, w-2*w_s, h-2*h_s-50);
}

function OpenImages(id){
  //OpenPreview('/galerie.php?&id='+id);
  OpenPreview(id+'/dovolena.html');
}