function updateDate() {
   var date = new Date();
   document.getElementById('currentDate').innerHTML = date.toLocaleDateString();
}

function launchWindow(url, width, height, toolbar, menubar, scrollbars) {
    var left = (screen.width - width) / 2 ;
    var top = (screen.height - height) / 2;
    var win = window.open(url, 'newwindow', config='width=' + width + ', height=' + height + ', top=' + top + ', left=' + left + ', toolbar=' + toolbar + ', menubar='  + menubar + ', scrollbars=' + scrollbars + ', resizable=yes, location=no, directories=no, status=no');
    win.focus();
}