title: Use a variable derived from Javascript into an ASP tag
body: <p>I'm having difficulty in using a variable derived from Javascript into an ASP tag . </p>
  
  <pre><code>&lt;script language="javascript"&gt; 
      if (arg) 
      {
          var text_box_to_fill = arg.sendValue_Code;                  
          document.getElementById( document.getElementById("&lt;%= "+text_box_to_fill+".clientID %&gt;").value = selected_libelle_value;
      }
  &lt;/script&gt;
  </code></pre>
  
  <p>Any suggestions?</p>