--- a/rrdweb/html.py	Sat Jan 30 20:13:48 2010 +0200
+++ b/rrdweb/html.py	Sat Jan 30 23:15:22 2010 +0200
@@ -5,6 +5,18 @@
 
 import os.path
 
+def urljoin (*parts) :
+    url = ""
+
+    for part in parts :
+        if part :
+            if url :
+                url += "/" + part
+            else :
+                url += part
+
+    return url
+
 class Formatter (object) :
     TEMPLATE_DIR = 'etc/templates'