questo script mi fa aprire la finestra a tutto schermo....

codice:
<script language="javascript">
<!--
var str;
if ( screen.width <= 800 || screen.height <= 600 ) {
	str = "left=0,screenX=0,top=0,screenY=0,fullscreen=yes";
}
else {
	str = "left=0,screenX=0,top=0,screenY=0,fullscreen=yes,channelmode=yes";
}

if (window.screen) {
  var ah = screen.availHeight - 30;
  var aw = screen.availWidth - 10;
  str += ",height=" + ah;
  str += ",innerHeight=" + ah;
  str += ",width=" + aw;
  str += ",innerWidth=" + aw;
} else {
  str += ",resizable"; // so the user can resize the window manually
}

function launchFull(url, name) {
  window.open(url, name, str);
}

function launch(furl, fname) {
//	if ( screen.width <= 800 || screen.height <= 600 ) {
		launchFull(furl, fname)
//	}
//	else {
//		launchFull(furl, fname)
//	}
}
//-->
</script>
mentre mi servirebbe che aprisse la finestra 760x420