Windows GDI in vb.net web app

Question

Hi guys,
           I need some help regarding windows GDI.  I need your help on some errors.
                           1. webform1.aspx has one button
                           2. user press the button                     
                           3. the pic with the gdi lines will be shown(Ive create a memorystream to store the image)
                           4. the webform1.aspx button will b gone

Anyway where i can retain the button at webform1.aspx? Is it anyway where i can allocate a space in the webpage to display the form? OR can i use javascript to open a window where i can show the image with the GDI lines?

Tks for helping =)