code: function (msg, nodeId, ns, isShow) {
              ns = ns || Rocket.Plugin.currentPlugin.namespace;
              var node = $("#" + ns + "_" + nodeId),
                  msgSpan = node.find("span.message");
              isShow ? node.removeClass("hide") && node.css("display", "block") : node.addClass("hide");
              if (node.data("autohide") == true && !node.hasClass("hide")) {
                  node.delay(4000).fadeOut(1000, function () {
                      $(this).addClass("hide");
                      $(msgSpan).html("");
                  });
              }
  
              //attach close listener to hide the flash message
              $(node.find(".close")).click(function () {
                  node.addClass('hide').css("display", "none");
                  $(msgSpan).html("");
              });
  
              if (msg) msgSpan.html(msg);
          }
docs: Method to toggle show of a flash messages
  
  Jade template should be as
  for error flash
  
  #<nodeId>.hide.alert.alert-error
  button(class="close", data-dismiss="alert") x
  span.message
  
  for success flash
  
  #<nodeId>.hide.alert.alert-success
  button(class="close", data-dismiss="alert") x
  span.message
  
  
  
  @param msg - Message to be displayed
  @param nodeId - Id for flash message container
  @param ns -  Namespace of current plugin
  @param isShow - flag to show or hide