function ResourceLoader(baseurl) { this.BASEURL = baseurl; } ResourceLoader.prototype.loadResource = function(resource, callback) { var self = this; evaluateScripts([resource], function(success) { if(success) { var resource = Template.call(self); callback.call(self, resource); } else { var title = "Resource Loader Error", description = `Error loading resource '${resource}'. \n\n Try again later.`, alert = createAlert(title, description); navigationDocument.presentModal(alert); } }); }