diff --git a/frontend/chbase.sh b/frontend/chbase.sh
new file mode 100755
index 00000000..161fb145
--- /dev/null
+++ b/frontend/chbase.sh
@@ -0,0 +1,44 @@
+#!/bin/sh
+
+# You can define the current base URL in your environment
+[ -n "${CURRENT_BASE}" ] || CURRENT_BASE="/"
+
+usage() {
+    echo "$0 NEWBASE STATICDIR"
+    echo
+    echo "  This script can be used to change the base URL of the frontend."
+    echo "  Gives as PATH, the path to the static directory."
+    echo "  You should use this script only one time (ie. from a fresh git repository),"
+    echo "  as it doesn't erase previously defined base: it assumes the current base is /."
+    echo
+    echo "  For example:"
+    echo
+    echo "      $0 /$(date -d 'next year' +%Y)/" static/
+    echo
+}
+
+run() {
+    local NEWBASE=$1
+    local FILE=$2
+
+    if [ -d "${FILE}" ]
+    then
+	for f in "${FILE}/"*.html "${FILE}/"*.js
+	do
+	    run "${NEWBASE}" "${f}"
+	done
+	[ -d "${FILE}/js/" ] && run "${NEWBASE}" "${FILE}/js"
+	[ -d "${FILE}/views/" ] && run "${NEWBASE}" "${FILE}/views"
+    elif [ -f "${FILE}" ]
+    then
+	sed -ri "s@(href|src)=\"${CURRENT_BASE}@\1=\"${NEWBASE}@g;s@\\\$http.get\(\"${CURRENT_BASE}@\$http.get\(\"${NEWBASE}@g;s@\\\$http\((.*)\"${CURRENT_BASE}@\$http(\1\"${NEWBASE}@g" ${FILE}
+    fi
+}
+
+if [ $# -gt 1 ]
+then
+    run $1 $2
+else
+    usage
+    exit 1
+fi
diff --git a/frontend/static/js/challenge.js b/frontend/static/js/challenge.js
index 63757736..3568bb75 100644
--- a/frontend/static/js/challenge.js
+++ b/frontend/static/js/challenge.js
@@ -172,13 +172,7 @@ angular.module("FICApp", ["ngRoute", "ngSanitize"])
 
 	$scope.hsubmit = function(hint) {
 	    hint.submitted = true;
-	    $http({
-		url: "/openhint/" + $rootScope.current_exercice,
-		method: "POST",
-		data: {
-		    id: hint.id
-		}
-	    }).success(function(data, status, header, config) {
+	    $http({ url: "/openhint/" + $rootScope.current_exercice, method: "POST", data: { id: hint.id } }).success(function(data, status, header, config) {
 		var checkDiffHint = function() {
 		    $http.get("/my.json").success(function(my) {
 			angular.forEach(my.exercices[$rootScope.current_exercice].hints, function(h,hid){
@@ -231,11 +225,7 @@ angular.module("FICApp", ["ngRoute", "ngSanitize"])
 		flgs[flag.name] = flag.value;
 	    });
 
-	    $http({
-		url: "/submit/" + $rootScope.current_exercice,
-		method: "POST",
-		data: flgs
-	    }).success(function(data, status, header, config) {
+	    $http({ url: "/submit/" + $rootScope.current_exercice, method: "POST", data: flgs }).success(function(data, status, header, config) {
 		$rootScope.messageClass = {"text-success": true};
 		$rootScope.message = data.errmsg;
 		$rootScope.sberr = "";