title: Best way to post files asynchronously with ExtJS
body: <p>I basically have a form that the users filled in, and in which it's also possible to attach files. It's really equivalent to gmail actually: the files are sent while you're still typing the information in the form, and when you click on the final submit button, it waits for the files to be all transferred and submit the final fields.</p>
  
  <p>My issue here is to submit these files during the process. My first idea was to first create a new FormPanel for each added file in order to be able to send them using a POST Ext.Ajax.request. Unfortunately, we can't embed a form in a form (and somewhat I thought that ExtJS would handle this differently, but I tried and t it's not).</p>
  
  <p>I've seen a few controls on Internet using some Flash to do this, but this is not the way I want to do it. I would like to do it the same way as Google made it! Except having a progress bar, it's a nice feature but it's not mandatory :)
  Thank you for your help!</p>