https://www.notredamehs.com/js/frontend/feedback.js

1if($('#map_canvas').length) {
2	$.when(add_js('//maps.google.com/maps/api/js?key=AIzaSyBhu5ibJC_Df3aYWZW_ryElSDtrQbvg9HA&sensor=false')).done(function() {
3		var directionsDisplay;
4		var directionsService = new google.maps.DirectionsService();
5		var map;
6		var marker;
7		var oldDirections = [];
8		var currentDirections = null;
9
10		function initialize() {
11			var myOptions = {
12				zoom: 14,
13				center: new google.maps.LatLng($('#map_canvas').attr('data-latitude'),$('#map_canvas').attr('data-longitude')),
14				mapTypeId: google.maps.MapTypeId.ROADMAP
15			}
16			map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
17
18			marker = new google.maps.Marker({
19				position: new google.maps.LatLng($('#map_canvas').attr('data-latitude'),$('#map_canvas').attr('data-longitude')),
20				map: map
21			});
22
23			directionsDisplay = new google.maps.DirectionsRenderer({
24				"map": map,
25				"preserveViewport": false,
26				"draggable": true
27			});
28
29
30			directionsDisplay.setPanel(document.getElementById("directions_panel"));
31
32			google.maps.event.addListener(directionsDisplay, "directions_changed",
33			function() {
34				if (currentDirections) {
35					oldDirections.push(currentDirections);
36				}
37				currentDirections = directionsDisplay.getDirections();
38			});
39		}
40
41		function calcRoute(start,end) {
42			if(!start) {
43				showAlert("You must enter a start address.","bad");
44				return false;
45			}
46
47			if(!end) {
48				showAlert("You must enter an end address.","bad");
49				return false;
50			}
51
52			marker.setMap(null);
53
54			var request = {
55				origin:start,
56				destination:end,
57				travelMode: google.maps.DirectionsTravelMode.DRIVING
58			};
59
60			directionsService.route(request, function(response, status) {
61				if (status == google.maps.DirectionsStatus.OK) {
62					directionsDisplay.setDirections(response);
63				}
64			});
65		}
66
67		initialize();
68
69		$("#go").click(function() {
70			var start = document.getElementById("start").value;
71			var end = document.getElementById("end").value;
72
73			calcRoute(start,end);
74			return false;
75		});
76
77		$("#start").keydown(function(e) {
78			if(e.keyCode==13) {
79				$("#go").click();
80			}
81		});
82	});
83}