function OpenPopupWindow(link, title, width, height) {
    var LeftPosition = (screen.width) ? (screen.width - width) / 2 : 0;
    var TopPosition = (screen.height) ? (screen.height - height) / 2 : 0;
    
    window.open(link, title, 'menubar=0,resizable=0,width=' + width + ' ,height=' + height + ",top=" + TopPosition + ",left=" + LeftPosition);
    return false;
}