title: How can I let a user download multiple files when a button is clicked?
body: <p>So I have a httpd server running which has links to a bunch of files.  Lets say the user selects three files from a file list to download and they're located at:</p>
  
  <pre><code>mysite.com/file1 
  mysite.com/file2
  mysite.com/file3
  </code></pre>
  
  <p>When they click the download button I want them to download these three files from the links above.  </p>
  
  <p>My download button looks something like:</p>
  
  <pre><code>var downloadButton = new Ext.Button({
    text: "Download",
    handler: function(){
      //download the three files here
    }
  });
  </code></pre>