title: Smooth scrolling end positioning
body: <p>I have a nifty smooth animated scroll that goes up and down depending on what you click on the navigation (thanks to <a href="http://css-tricks.com/snippets/jquery/smooth-scrolling/" rel="nofollow">CSS-Tricks</a>!). Now this is all working great but I have a nav that sticks to the top of the browser window and gets in the way of the section headers when it scrolls down. I can't for the life of me find anyone who may have had a similar issue with, what seems like, a very simple function.</p>
  
  <p>Here's the JS that I have pasted into my HTML: </p>
  
  <pre><code>&lt;script type="text/javascript"&gt;
  $(document).ready(function() {
    function filterPath(string) {
    return string
      .replace(/^\//,'')
      .replace(/(index|default).[a-zA-Z]{3,4}$/,'')
      .replace(/\/$/,'');
    }
    var locationPath = filterPath(location.pathname);
    var scrollElem = scrollableElement('html', 'body');
  
     $('a[href*=#]').each(function() {
      var thisPath = filterPath(this.pathname) || locationPath;
      if (  locationPath == thisPath
      &amp;&amp; (location.hostname == this.hostname || !this.hostname)
      &amp;&amp; this.hash.replace(/#/,'') ) {
        var $target = $(this.hash), target = this.hash;
        if (target) {
          var targetOffset = $target.offset().top;
          $(this).click(function(event) {
            event.preventDefault();
            $(scrollElem).animate({scrollTop: targetOffset}, 800, function() {
              location.hash = target;
            });
          });
        }
      }
    });
  
    // use the first element that is "scrollable"
    function scrollableElement(els) {
      for (var i = 0, argLength = arguments.length; i &lt;argLength; i++) {
        var el = arguments[i],
            $scrollElement = $(el);
        if ($scrollElement.scrollTop()&gt; 0) {
           return el;
        } else {
          $scrollElement.scrollTop(1);
          var isScrollable = $scrollElement.scrollTop()&gt; 0;
          $scrollElement.scrollTop(0);
          if (isScrollable) {
            return el;
          }
        }
      }
      return [];
    }
  
  });&lt;/script&gt;
  </code></pre>
  
  <p>So I am in the process of learning JS and JQuery so I appreciate everyones patience and look forward to hearing your comments.</p>
  
  <p>Many thanks in advance.</p>
  
  <p>Edit: here is my test site: <a href="http://www.nathanlangley.co.uk/main_site_6/index.html" rel="nofollow">test</a></p>