Refresh another page from one page on Button Click

I have an image uploader in admin panel of my website. That uploaded image is shown in some user page. Now, when i open the user page in a tab & the admin page containing the image uploader in another tab and then upload the image here and save it, it should automatically refresh the user page in the tab already opened but should not disturb the page that am currently now. Can you give me a better solution for this.