text: 
  define(['knockout'], function(ko) {
      return function(activity) {
          var self = this;
  
          self.name = activity.name;
          self.activityId = activity.activityId;
          self.showOnPicker = activity.showOnPicker;
  
          self.activityClassName = function() {
              var classes = "";
              classes += " " + self.name.toLowerCase().replace(" ", "");
  
              return classes;
          };
  
          return self;
      };
  });
  