title: Scroll on page with offset
body: <p>I am using the following script for a smooth scroll effect on my single page website: </p>
  
  <pre><code>$('a').click(function(){
  $('html, body').animate({
      scrollTop: $( $.attr(this, 'href') ).offset().top
      }, 500);
      return false;
  });
  </code></pre>
  
  <p>How can i integrate a minus 100px offset into this script? Sorry im a jQuery Newbie... Thanks for your help and best regards.</p>