diff --git a/lib/object_view.rb b/lib/object_view.rb
index aa44dc0..111f3be 100644
--- a/lib/object_view.rb
+++ b/lib/object_view.rb
@@ -2,15 +2,15 @@ require_relative "ref_view"
 
 class ObjectView < ListView
 
-  def initialize interpreter , object_id
+  def initialize  object_id , interpreter = nil
     @object_id = object_id
     @interpreter = interpreter
-    @interpreter.register_event(:object_changed,  self)
+    @interpreter.register_event(:object_changed,  self) if interpreter
     super( content_elements )
   end
 
   def draw
-    @element = super("ul.nav!")
+    @element = super(@interpreter ? "ul.nav!" : "ul")
     prepend_element div("li" , "-------------------------")
     prepend_element div( "li" ) << div("span" ,  class_header(@object_id) )
     return @element
diff --git a/lib/ref_view.rb b/lib/ref_view.rb
index c137dce..d7d2493 100644
--- a/lib/ref_view.rb
+++ b/lib/ref_view.rb
@@ -1,16 +1,38 @@
-class RefView < ElementView
+class RefView < ListView
 
   def initialize name  , value
     @name = name
     @value = value
+    super []
+  end
+
+  attr_reader :value
+
+  def value= val
+    @value = val
+    add_hover
   end
 
-  attr_accessor :value
-  
   def draw
     @element =  div("li") << div("a" ,  "#{@name} : #{marker(@value)}" )
+    add_hover
+    @element
   end
 
+  def add_hover
+    @element.on("hover"){ hover } if is_object?(@value)
+  end
+
+  def is_object?( id )
+   Virtual.machine.objects[id] != nil
+  end
+
+  def hover
+    puts "hovering #{@name}"
+    append ObjectView.new(@value)
+    @element.off("hover")
+  end
+  
   def marker id
     var = Virtual.machine.objects[id]
     if var.is_a? String
diff --git a/lib/registers_view.rb b/lib/registers_view.rb
index 3387d79..4fb5002 100644
--- a/lib/registers_view.rb
+++ b/lib/registers_view.rb
@@ -26,7 +26,7 @@ class RegistersView < ListView
     reg = reg.symbol unless reg.is_a? Symbol
     index = reg.to_s[1 .. -1 ].to_i
     if( is_object? value )
-      swap =  ObjectView.new( @interpreter, value )
+      swap =  ObjectView.new( value , @interpreter )
     else
       swap = ValueView.new value
     end