function OpenPopupWindow(childURL, childName, childFeatures) {
        var wndOpener = GetParentIfExists(window);
        var wndChild;
        wndChild = window.open(childURL, childName, childFeatures);
}


function GetParentIfExists(wnd){
        var wndOpener = wnd.parent;
        if (!wndOpener) wndOpener = wnd;
        return wndOpener;
}