title: Add thumbnails to ResponsiveSlide.js
body: <p>I'm trying to create a custom thumbnail gallery using ResponsiveSlide.js but can't seem to figure out how I can trigger individual slides. I'm not sure if I can call it with a CSS change or if I need to use JS. I'm also pretty new to jQuery too so that doesn't help.</p>
  
  <p>What I have so far is a working slideshow, and thumbnails link but I can't trigger the slide change when I click on them.</p>
  
  <pre><code>&lt;a onClick="$('#slider1_s2').addClass(activeClass)" href="#"&gt;thumb image&lt;/a&gt;
  </code></pre>
  
  <p>slider1_s2 is the ID tag of the slide I am trying to call in this instance, but it could be any slide.</p>