title: File Uploading without page refresh in Web pages
body: <p>Hii,</p>
  
  <p>Any one knows how to upload files to the physical location of the server. It is possible using file upload control that i know. But i want to avoid the external postbacking of the page. For e.g exactly like what in the yahoo mail did. </p>
  
  <p>In yahoo mail latest version if you attach a file that won't post back and attach that file in to server. What is the technology behind that?</p>