diff -r 4b5478da5850 -r 0fe851a29bc6 lib/utils.py
--- a/lib/utils.py	Fri Dec 21 20:49:04 2007 +0000
+++ b/lib/utils.py	Fri Dec 21 21:19:01 2007 +0000
@@ -46,6 +46,9 @@
 
 def url_join (*parts) :
     return '/'.join(parts)
+    
+def path_join (*parts) :
+    return os.path.join(*[part for part in parts if part is not None])
  
 from optparse import OptionParser