Prova Così
codice:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Documento senza titolo</title>
<script type="text/javascript" language="JavaScript">
<!--
function winOpen(URL, windowName, width, height, left, top, resizable, location, menubar, scrollbars, status, toolbar, directories){
	var windowFeatures;
	windowFeatures = '';
	if (width != '')
		windowFeatures = windowFeatures+'width='+width+',';
	if (height != '')
		windowFeatures = windowFeatures+'height='+height+',';
	if (left != '')
		windowFeatures = windowFeatures+'height='+height+',';
	if (top != '')
		windowFeatures = windowFeatures+'height='+height+',';
	if (resizable)
		windowFeatures = windowFeatures+'resizable,';
	if (location)
		windowFeatures = windowFeatures+'location,';
	if (menubar)
		windowFeatures = windowFeatures+'menubar,';
	if (scrollbars)
		windowFeatures = windowFeatures+'scrollbars,';
	if (status)
		windowFeatures = windowFeatures+'status,';
	if (toolbar)
		windowFeatures = windowFeatures+'toolbar,';
	if (directories)
		windowFeatures = windowFeatures+'directories,';
	window.open(URL, windowName, windowFeatures);
}

//-->
</script>

</head>

<body>
Apri finestra
</body>
</html>