[ImageOutputCache(Duration = 3000, Location = System.Web.UI.OutputCacheLocation.Client)]
    public void GetPic(string fn, int? w, int? h)
    {
        try
        {
            if (w > 1920) { w = 1920; }
            if (h > 1080) { h = 1080; }
            WebImage wi = new WebImage(@"~/img/" + fn);
            if (!h.HasValue)
            {
                Single ratio = (Single)wi.Width / (Single)wi.Height;
                h = (int)Math.Ceiling(wi.Width / ratio);
            }

            wi
                    .Resize(w.Value + 1, h.Value + 1, true, true) // Resizing the image to 100x100 px on the fly...
                    .Crop(1, 1) // Cropping it to remove 1px border at top and left sides (bug in WebImage)
                    .Write();
        }
        catch
        {
            //new WebImage(@"~/img/default.jpg").Write();
            //Redirect(@"~/img/default.jpg");
        }
    }