gistfile1.js

var fbloading = false;
Template.newEventDialog.helpers({
  'fbloading': function() {
		return fbloading;
	}
});

Template.newEventDialog.events({
	'blur input[name=facebook-url]': function(e) {
		e.preventDefault();
		function parseUrlForID() {
			var url = $('input[name=facebook-url]').val();
			var re = 'events/[0-9]*';
			var args = url.match(re);
			if (args.length > 0)
				args = args[0];
			var eventId = args.split('/')[1];
			return(eventId);
		}

		function getEventDetails() {
			fbloading = true;
			FB.api(parseUrlForID(), function(response) {
				fbloading = false;
				console.log(response);
				$('input[name=event-title]').val(response.name);
				$('input[name=event-datetime]').val(response.start_time);
				$('input[name=event-location]').val(response.location);
			});
		}

		FB.getLoginStatus(function (response) {
            if (response.authResponse) {
            	getEventDetails();
            } else {
                FB.login(function(response) {
                	if(response.authResponse) {
                		getEventDetails();
                	} else {
                		console.log('display an error somewhere');
                	}
                });
            }
    	});
	},

	'click #new-event-cancel': function(e) {
		$('input[name=facebook-url]').val("");
		$('input[name=event-title]').val("");
		$('input[name=event-datetime]').val("");
		$('input[name=event-location]').val("");
	},

	'click #new-event-submit': function(e) {

	}
});

Template.newEventDialog.rendered = function () {
	$('#new-event-dialog').on('shown', function() {
		var picker = $('#datepicker').datetimepicker({
			format: 'dd/MM/yyyy hh:mm',
			pickSeconds: false,
			pick12HourFormat: true,
			startDate: new Date().getTime()
		});
	});

	$('#new-event-dialog').on('hide', function() {
		var widget = $('.bootstrap-datetimepicker-widget');
		widget.hide(); // this might be problematic. i'm getting this widget popping up at the wrong time but not sure why
	});
};

gistfile2.handlebars

div class="event-display" style="display:inline-block; float:right;">
  			{{#if fbloading}}
					loading...
				{{/if}}
			</div>