Displa image in full screen

HI every one.

I had code to create image buttons dynamically to show images from folder in web application using C#.net,i want that if the mouse pointer is over an Image(or on image button Click event)then it should show full image with respect to that image button .
will it possible ?here is my code:

foreach (string filepath in Directory.GetFiles("D:/WEB/images_Botinfo"))
            {
                string imagename = new FileInfo(filepath).Name;
                string imageid = imagename.Split('_')[0].ToString();
                SqlDataReader plantid = obj_bl_dravya.select_iden_rb_imageID(lstbxsearch.SelectedItem.Text.ToString());
                if (plantid.HasRows)
                {
                    plantid.Read();
                    string id = plantid.GetValue(0).ToString();
                    if (imageid == id)
                    {
                        ImageButton imgbtn = new ImageButton();
                        imgbtn.Height = 190;
                        imgbtn.Width = 175;
                        Label lblspace = new Label();//to give space between images
                        lblspace.Height = 20;
                        lblspace.Width = 15;
                        pnlImages.Controls.Add(lblspace);
                        imgbtn.ImageUrl = filepath.ToString();
                        pnlImages.Controls.Add(imgbtn);
                        pnlImages.Visible = true;                                
                    }
                }                
            }