title: Change data-src value of li
body: <p>How do i change data-src value of li? Im using lightgallery jquery plugin and want to change the data-src of the thumbnail</p>
  
  <pre><code> &lt;li id="imageThumb" data-src="data:image/jpg;base64,@(Convert.ToBase64String(Model.Datas.Datas))"&gt;
              &lt;img id="imageBig" src="data:image/jpg;base64,@(Convert.ToBase64String(Model.Datas.Datas))" /&gt;
          &lt;/li&gt;
  </code></pre>
  
  <p>this one works for the 
       img src but not the li</p>
  
  <pre><code>     document.getElementById("imageBig").src = oFREvent.target.result;
  </code></pre>