Puoi fare cosi

codice:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>
<head>
<title>Untitled</title>
</head>
<body onload="window.moveTo(0,0);window.resizeTo(window.screen.availWidth,window.screen.availHeight)">

</body>
</html>