Iv'e been thinking about it but can't find any resources on the internet.
I was wondering how the original page you are on gets updated with a thumbnail picture of what you uploaded because I need to reproduce something similar?
When you upload a picture on ebay you click upload then a new browser window opens. you then select your image on this form contained in the new window and select upload. when you upload the browser window closes and a thumbnail of your picture appears on your original page without reloading the page.