//================== openWindow =======================
// Opens a page in a pop-up window.
// url = url of web page
// intWidth = width of window
// intHeight = height of window
// intScrollbar = show/hide scrollbar (0 = hide, 1 = show)
function openWindow(url, intWidth, intHeight, intScrollbar)
{
    wintop = (window.screen.availHeight - intHeight)/2;
    winleft = (window.screen.availWidth - intWidth)/2;
    wResult = window.open(url, 'popup', "RESIZABLE=0,WIDTH=" + intWidth + ",HEIGHT=" + intHeight + ",SCROLLBARS=" + intScrollbar + ",LEFT=" + winleft + ",TOP=" + wintop);
}