Angular JS called form Lift's comet actors

angular.js

(function(){
  $(document).ready(function() {
    //Just like Lift removes elements with this class name
    $('.clearable').remove();
    $(document)
      .on('new-ng-chat', function(event, data) {
        addNGMessages( data )
    })
      .on('initial-chat-messages', function(event, data){
        //We do this to get the array as one var.
        var messages =  Array.prototype.slice.call(arguments, 1);
        /**
         * If you open a new tab, Lift will send you all stored messages, so we
         * avoid duplicating them here
         */
        if ( areMessagesLoaded() == false ) {
          $.each(messages, function(index, value){
            addNGMessages( value )
          });
        }
      });
  });
  function getScope() {
    var e = document.getElementById( 'messages' );
    return angular.element( e ).scope();
  }
  /*function that add messages to our model*/
  function addNGMessages( message ) {
    var scope = getScope();
    scope.$apply(function(){
      scope.todos.push( message )
    });
  }
  /*Do we have the initially loaded messages on this tab?*/
  function areMessagesLoaded() {
    var scope = getScope();
    return scope.todos.length > 0
  }
})();
/*The model*/
function TodoCtrl( $scope ) {
  $scope.todos = [];
}