diff --git a/addons/crm/crm.py b/addons/crm/crm.py
index 2b4075e4f7f..99c7c67c770 100644
--- a/addons/crm/crm.py
+++ b/addons/crm/crm.py
@@ -282,16 +282,7 @@ class crm_case(osv.osv):
         return super(crm_case, self).unlink(cr, uid, ids, context)
 
     def stage_next(self, cr, uid, ids, context={}):
-        ok = False
-        sid = self.pool.get('crm.case.stage').search(cr, uid, [('object_id.model', '=', self._name)], context=context)
-        s = {}
-        previous = {}
-        for stage in self.pool.get('crm.case.stage').browse(cr, uid, sid, context=context):
-            section = stage.section_id.id or False
-            s.setdefault(section, {})
-            s[section][previous.get(section, False)] = stage.id
-            previous[section] = stage.id
-
+        s = self.get_stage_dict(cr, uid, ids, context=context)
         for case in self.browse(cr, uid, ids, context):
             section = (case.section_id.id or False)
             if section in s:
@@ -300,7 +291,29 @@ class crm_case(osv.osv):
                     self.write(cr, uid, [case.id], {'stage_id': s[section][st]})
 
         return True
-
+    
+    def get_stage_dict(self, cr, uid, ids, context={}):
+        sid = self.pool.get('crm.case.stage').search(cr, uid, [('object_id.model', '=', self._name)], context=context)
+        s = {}
+        previous = {}
+        for stage in self.pool.get('crm.case.stage').browse(cr, uid, sid, context=context):
+            section = stage.section_id.id or False
+            s.setdefault(section, {})
+            s[section][previous.get(section, False)] = stage.id
+            previous[section] = stage.id
+        return s
+    
+    def stage_previous(self, cr, uid, ids, context={}):
+        s = self.get_stage_dict(cr, uid, ids, context=context)
+        for case in self.browse(cr, uid, ids, context):
+            section = (case.section_id.id or False)
+            if section in s:
+                st = case.stage_id.id  or False
+                s[section] = dict([(v, k) for (k, v) in s[section].iteritems()])
+                if st in s[section]:
+                    self.write(cr, uid, [case.id], {'stage_id': s[section][st]})
+        return True
+    
     def onchange_categ_id(self, cr, uid, ids, categ, context={}):
         if not categ:
             return {'value':{}}
diff --git a/addons/crm_project/crm_bugs_view.xml b/addons/crm_project/crm_bugs_view.xml
index ac6b1a530de..9821471a5ee 100644
--- a/addons/crm_project/crm_bugs_view.xml
+++ b/addons/crm_project/crm_bugs_view.xml
@@ -72,8 +72,9 @@
 	                    <field name="priority" string="Severity"/>
 	                    <field name="user_id" />
 	                    <label string="Resolution: " align="1.0"/>
-	                    <group colspan="1" col="2">
+	                    <group colspan="1" col="3">
 	                        <field name="stage_id" select="1" nolabel="1"/>
+	                        <button icon="gtk-go-back" string="" name="stage_previous" type="object"/>
 	                        <button icon="gtk-go-forward" string="" name="stage_next" type="object"/>
 	                    </group>
                     </group>
@@ -157,6 +158,12 @@
                 <field name="partner_id"/>
                 <field name="priority" string="Severity"/>                
                 <field name="stage_id" string="Resolution"/>
+                <button icon="gtk-go-back" string=""
+                	name="stage_previous" type="object"
+                	states="open,draft,pending,done,cancel" />
+                <button icon="gtk-go-forward" string=""
+                	name="stage_next" type="object"
+                	states="open,draft,pending,done,cancel" />
                 <field name="type_id" string="Version"/>
                 <field name="user_id"/>
                 <field name="state"/>