title: Changing offset from within onBefore - LocalScroll jQuery plugin
body: <p>I'm using localScroll plugin by Ariel Flesler and everything works fine. I've got one problem though. I can't find out how to change the offset parameter from within onBefore.</p>
  
  <p>e.g.</p>
  
  <pre><code>$('#menu').localScroll({
  
      hash: true,
      offset: {
          top: -60,
          left: 0
      },
      onBefore: function(e, anchor, $target) {
          if (something) {
              offset.top = -100;
          }
      }
  
  });​
  </code></pre>
  
  <p>I would be grateful if anyone could help:)</p>