Fixed goBack and backported various UI fixes.

game/begin.coffee

@@ -11,7 +11,6 @@ salet = Salet({
 })
 $(document).ready(() ->
   salet.beginGame()
-  salet.character.bought_lamp = false
 )
 
 ###
@@ -31,6 +30,8 @@ textcycle = (content, ref) ->
 # The first room of the game.
 # For accessibility reasons the text is provided in HTML, not here.
 room "start", salet,
+  enter: (salet) ->
+    salet.character.bought_lamp = false
   dsc: """
   """,
   choices: "#start"

lib/salet.coffee

@@ -304,10 +304,12 @@ class Salet
     # Go back N rooms. It's not an UNDO.
     # Also, steps = 1 is the current room
     @goBack = (steps = 2) =>
-      if @progress.path.length > steps
+      if @progress.path.length == 1
+        location = @start
+      else if @progress.path.length > steps
         location = @progress.path[@progress.path.length - steps]
       else
-        location = @start
+        return @goBack(steps - 1)
       @processClick(location)
 
     # Transition between rooms.

lib/view.coffee

@@ -26,7 +26,7 @@ addClass = (element, className) ->
 
 class SaletView
   init: (salet) =>
-    $("#content, #ways, #buttons").on("click", "a", (event) ->
+    $("#page").on("click", "a", (event) ->
       event.preventDefault()
       a = $(this)
       href = a.attr('href')
@@ -86,7 +86,9 @@ class SaletView
   ###
   clearContent: (elementSelector = "#content") ->
     if (elementSelector == "#content") # empty the intro with the content
-      document.getElementById("intro").innerHTML = ""
+      intro = document.getElementById("intro")
+      if intro?
+        intro.innerHTML = ""
     document.querySelector(elementSelector).innerHTML = ""
 
   prepareContent: (content) ->