I have seen JSP/struts pages having 'operation in progress' kind of progress status indicators which seems to be on a different JSP page and when the operation is completed, it redirects to another page. I m not refering to doing a pop up before submit and closing the popup on unload of the page.
1) How is that done? Any links/url that shows how?
2) Is that exact thing possible in PHP as well? Any links/url that shows how?