diff -r bb4aabe07487 -r 7fc1c60c01eb src/pyams_skin/interfaces/__init__.py
--- a/src/pyams_skin/interfaces/__init__.py	Thu Feb 19 10:59:00 2015 +0100
+++ b/src/pyams_skin/interfaces/__init__.py	Sat Feb 21 13:52:31 2015 +0100
@@ -91,6 +91,8 @@
 class IPageHeader(Interface):
     """Page header interface used by 'header' content provider"""
 
+    back_url = TextLine(title="Back URL target")
+
     icon_class = TextLine(title='Icon CSS class')
 
     title = TextLine(title='Page title')