<script language="javascript" type="text/javascript">
var win = null;
function NewWindow(mypage,myname,w,h,scroll){
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
settings =
'height='+h+',width='+w+',top='+TopPosit
ion+',left='+LeftPosition+',scrollbars='
+scroll+',resizable'
win = window.open(mypage,myname,settings)
if(win.window.focus){win.window.focus();}
}
</script>

<body onLoad="NewWindow('http://www.microsoft.com',
'nom_page','400','400','yes');return false">