function openWindow(page)
{
var w = 685;
var h = 631;
var	sw = screen.availWidth;
var	sh = screen.availHeight;
var l = (sw - w) / 2;
var t = (sh - h) / 2;
var	WndHandle = 'myWindow';
var features ="top=" + t +",left=" + l + ",width=" + w + ",height=" + h + ",resizable=0,scrollbars=0;toolbar=0;"
var myWindow = window.open(page, WndHandle, features);
return false;
}