title: Mousedown scroll function not working
body: <p>I've got a button that is intended to scroll down a div when the mouse button is clicked and held on it . I thought this should work but it only scrolls one px per click as oppose to scrolling until the mouse up event . </p>
  
  <p>code:</p>
  
  <pre><code> var howfar = 0;
      $('#scrolldown').mousedown(function() {
  
          howfar ++;
          $('#scrollbox').scrollTop(howfar);
  
      });
  </code></pre>