app.directive('scroll', ['$window','$timeout',function($window,$timeout) {
  return {
    restrict: 'A',
    scope: {
      offset: '@',
      offsetSecond: '@',
      scrollClass: '@',
      scrollClassSecond: '@',
      scrollClassThird: '@'
    },
    link: function(scope, element) {
      var canIHover = function(){
        element.removeClass(scope.scrollClassThird);
        $timeout(function(){
          element.addClass(scope.scrollClassThird);
        },1000)
      }
      var windowJQ = angular.element($window)
      windowJQ.bind("scroll", function() {
          if (window.pageYOffset >= parseInt(scope.offset)) {
            element.addClass(scope.scrollClass);
            canIHover();
          } else {
            element.removeClass(scope.scrollClass);
            canIHover();
          }

          if(window.pageYOffset >= parseInt(scope.offsetSecond)){
            element.addClass(scope.scrollClassSecond);
            canIHover();
          } else {
            element.removeClass(scope.scrollClassSecond);
            canIHover();
          }
      });
    }
  };
}])