title: revert handle value in multi handle jqueryUI slider
body: <p>I have a multi handle jqueryui slider having range -30 to 50 , initially all handles set to zero. I want that if user slide any handle below zero then it automatically get set to zero.</p>
  
  <p>jquery</p>
  
  <pre><code> $(function () {
  $("#mySlider").slider({
      min: -30,
      max: 50,
      values: [0, 0, 0],
      slide: function (event, ui) {
          $(ui.handle).text(ui.value);
      },
      stop: function (event, ui) {
          if (ui.value &lt; 0) {
              //here I want to set handle to zero.
          };
      }
  });
  </code></pre>
  
  <p>});</p>
  
  <p>Fiddle:<a href="http://jsfiddle.net/trivender/6NftK/20/" rel="nofollow">http://jsfiddle.net/trivender/6NftK/20/</a></p>