Using JS routes in Playframework 2.x (Scala)

MyController.scala

package controllers

object MyController extends Controller {

  def add() = Action { implicit request =>
    Form( tuple ( "user" -> number ) ).bindFromRequest.fold(
      errors => BadRequest,
      t => {
        Ok("Add id: " + t)
      }
    )
  }


  def delete(input : String) = Action { implicit request =>
    try {
      val id = java.lang.Long.parseLong(input)
      Ok("Delete id: " + id)
    } catch { case _ : Throwable => BadRequest }
  } 

}

routes

# Routes
# This file defines all application routes (Higher priority routes first)
# ~~~~

# ... Normal routes

# JS Routes:
PUT     /comment/add       controllers.MyController.add
DELETE  /comment/:id       controllers.MyController.delete(id)

template.scala.html

@(id : Int)

@helper.javascriptRouter("myRoutes")(
  routes.javascript.MyController.add,
  routes.javascript.MyController.delete
)

<script type="text/javascript">
  function addSomeAjax() {
    myRoutes.controllers.MyController.add().ajax({
        data: { user: @id },
        success: function(data) {
          alert("Succes!111one");
        }
    })
  }
  function deleteSomeAjax() {
    myRoutes.controllers.MyController.delete(@id).ajax({
      success: function(data) {
        alert(data);
      }
    });
  }
</script>