anchor.diff:                  <tr>
                       <td><label>BlazeMeter API version:</label></td>
                       <td>
  -                    <select type="text" id="blazeMeterApiVersion" name="blazeMeterApiVersion">
  +                    <select type="text" id="blazeMeterApiVersion" name="blazeMeterApiVersion" value="<c:out value="${blazeMeterApiVersion}"/>">
                           <option value="autoDetect">Auto Detect</option>
                           <option value="v3">V3(force)</option>
                           <option value="v2">V2(deprecated)</option>
  
positive.code:             alert("User key is empty!");
              return;
          }
  
          BS.ajaxRequest($('BlazeMeterAdminPageForm').action, {
              parameters: 'user_key=' + usrKey
  
negative.code:             </div>
          </div>
      </form>
                          <script type="text/javascript">
  var apiVersionSelect=document.getElementById("blazeMeterApiVersion")
  var apiVersionValue=apiVersionSelect.getAttribute("value")
  var selectedLength = apiVersionSelect.options.length;
  for(var i=0;i<selectedLength;i++){
     if(apiVersionSelect.options[i].value==apiVersionValue){
        apiVersionSelect.selectedIndex=i;
     }
  }
  </script>
  
  </bs:refreshable>
  