<SCRIPT LANGUAGE="JavaScript">
<!--

function launchCenter(url, name, height, width) {
var str = "height=" + height + ",innerHeight=" + height;
str += ",width=" + width + ",innerWidth=" + width;
if (window.screen) {
var ah = screen.availHeight - 30;
var aw = screen.availWidth - 10;

var xc = (aw - width) / 2;
var yc = (ah - height) / 2;

str += ",left=" + xc + ",screenX=" + xc;
str += ",top=" + yc + ",screenY=" + yc;
}
return window.open(url, name, str);
}

// -->
</SCRIPT>
<FORM><INPUT TYPE="button" VALUE="Launch Window" onClick="launchCenter('center.html', 'center', 220, 440)">
<INPUT TYPE="button" VALUE="other Window" onClick="launchCenter('center.html', 'center', 420, 140)">

</FORM>

</body>