diff --git a/app.js b/app.js
index 2afc20e..ae2abbb 100644
--- a/app.js
+++ b/app.js
@@ -1,12 +1,5 @@
 const BASE_API = "/api";
 
-$("#lines").hide();
-$("#line").attr("disabled", true);
-$("#destinations").attr("disabled", true);
-$("#stations").attr("disabled", true);
-$("#traffic").hide();
-$("#schedule").hide();
-$("#loading").hide();
 var nextSchedule = null;
 var nextTraffic = null;
 
@@ -38,7 +31,9 @@ $("#stations").change(function() {
 
 $("#lines").submit(function(event) {
     event.preventDefault();
-    window.location.pathname = ["", $("#linesFilter").val(), $("#line").val(), $("#stations").val(), $("#destinations").val().length != 0?$("#destinations").val():""].join("/")
+    var v = [$("#linesFilter").val(), $("#line").val(), $("#stations").val(), $("#destinations").val().length != 0?$("#destinations").val():""]
+    history.pushState(null, $("title").text(), "/" + v.join("/"));
+    main(v, false);
 });
 
 function findLines(type) {
@@ -119,14 +114,37 @@ function getSchedule(type, code, station, way) {
     });
 }
 
-function main(uri) {
+function main(uri, fetchTrafic) {
+    $("#lines").hide();
+    $("#line").attr("disabled", true);
+    $("#destinations").attr("disabled", true);
+    $("#stations").attr("disabled", true);
+    $("#schedule").hide();
+    $("#loading").hide();
+
+    if (nextTraffic != null) {
+	clearTimeout(nextTraffic);
+	nextTraffic = null;
+    }
+    if (nextSchedule != null) {
+	clearTimeout(nextSchedule);
+	nextSchedule = null;
+    }
+
     if (uri.length == 4 || uri.length == 3) {
+	if (uri[3] == "")
+	    uri.pop();
 	if (uri.length == 3)
 	    uri.push("A+R");
 
 	getSchedule(uri[0], uri[1], uri[2], uri[3]);
-	getTraffic(uri[0], uri[1]);
+	if (fetchTrafic)
+	    getTraffic(uri[0], uri[1]);
     } else if (uri.length == 1 || uri.length == 2) {
+	$("#traffic").hide();
+	$("#station").hide();
+	$("title").text("Application RATP");
+
 	switch(uri[0]) {
 	case "metros":
 	case "rers":
@@ -138,13 +156,19 @@ function main(uri) {
 	    $("#linesFilter").change();
 	    break;
 	default:
-	    window.location.pathname = window.location.pathname + "/..";
+	    window.location.pathname = "/";
 	}
     } else if (uri.length == 0) {
 	if ($("#linesFilter").val().length != 0)
-	    main([ $("#linesFilter").val() ]);
+	    main([ $("#linesFilter").val() ], true);
 	else
 	    $("#lines").show();
     }
 }
-main(uri);
+main(uri, true);
+
+window.onpopstate = function(event) {
+    main(window.location.pathname.split("/").filter(function(v) {
+	return v.length > 0;
+    }), true);
+}