var newWindow = '';

function createWindow(name, url, width, height, scrollbars) {
    var windowURL = url;

    var windowName = name;

    var features =
        'width='        + width +
        ',height='      + height +
        ',directories=' + 'no' +
        ',location='    + 'no' +
        ',menubar='     + 'no' +
        ',scrollbars='  + scrollbars +
        ',status='      + 'no' +
        ',toolbar='     + 'no' +
        ',resizable='   + 'no';

    newWindow = window.open (windowURL, windowName, features);
    newWindow.focus();

}