title: jQuery selector by xlink
body: <pre><code>$('a[xlink\\:href=#coastline]').attr('class','grey');
  $('a[xlink\\:href=#onshore]').attr('class','blue-light');
  </code></pre>
  
  <p>This is what I currently have to select each item that has the xlink of <code>#coastline</code> and turn it grey and turn <code>#onshore</code> to <code>blue-light</code></p>
  
  <p>How would I be able to change the above to select any <code>a[xlink\\:href]</code> and give it a class? </p>
  
  <p>I have tried <code>$('a[xlink:href]').attr('class', 'yellow');</code> but this doesn't give them a class of <code>yellow</code></p>