title: Add Query-String parameter to static link on click
body: <p>I'm looking for a robust way of dynamically injecting a query string parameter when a visitor clicks on a static anchor-link.</p>
  
  <p>For example a link:</p>
  
  <pre><code>&lt;a href="http://www.johndoeslink.com"&gt;Test&lt;/a&gt;
  </code></pre>
  
  <p>I want to pass a query string to the next page but have to assign the value dynamically. How can I achieve this?</p>
  
  <p>I know this is simple I'm just missing something obvious! =\</p>
  
  <p>Thanks in advance,</p>
  
  <p>John d</p>