Fenster ohne Toolbar und Scroll

[muh]

function winopennoborder()
{
  URL = "";
  WW = 400;
  HH = 200;

winXX = screen.availWidth;
  winYY = screen.availHeight;

XX = winXX/2 - WW/2;
  YY = winYY/2 - HH/2;

win2 = window.open(URL,"w2","fullscreen");
  win2.resizeTo(WW,HH);
  win2.moveTo(XX,YY);
  win2.focus();
}

<a href="javascript:winopennoborder()">link</a>