Initialize Labels with a session refrence

lib/webrat/core/field.rb

@@ -96,7 +96,7 @@ module Webrat
     end
     
     def labels
-      @labels ||= label_elements.map { |element| Label.new(self, element) }
+      @labels ||= label_elements.map { |element| Label.new(@session, element) }
     end
     
     def label_elements

lib/webrat/core/form.rb

@@ -48,7 +48,7 @@ module Webrat
     
     def labels
       @labels ||= Webrat::XML.css_search(element, "label").map do |element|
-        label = Label.new(nil, element)
+        label = Label.new(@session, element)
         @session.elements[Webrat::XML.xpath_to(element)] = label
         label
       end

lib/webrat/core/label.rb

@@ -7,8 +7,8 @@ module Webrat
       ".//label"
     end
     
-    def initialize(field, element)
-      @field    = field
+    def initialize(session, element)
+      @session  = session
       @element  = element
     end