title: Dynamically changing less variables
body: <p>I want to change a less variable on client side. 
  Say I have a less file</p>
  
  <pre><code>@color1: #123456;
  @color2: @color1 + #111111;
  
  .title { color: @color1; }
  .text { color: @color2; }
  </code></pre>
  
  <p>I want that user yo pick a color and change the value of @color1 and recompile css without reloading the page.</p>
  
  <p>Basically I'm looking for a js function, something like this</p>
  
  <pre><code>less_again({color1: '#ff0000'}) 
  </code></pre>