diff --git a/ahserver/globalEnv.py b/ahserver/globalEnv.py
index 09e4c98..08c4f86 100644
--- a/ahserver/globalEnv.py
+++ b/ahserver/globalEnv.py
@@ -166,10 +166,15 @@ def file_download(request,path,name,coding='utf8'):
 	request.write(b)
 	request.finish()
 	
+def paramify(data, ns):
+	ac = ArgsConvert('${', '}$')
+	return ac.convert(data, ns)
+
 def initEnv():
 	pool = DBPools()
 	g = ServerEnv()
 	set_builtins()
+	g.paramify = paramify
 	g.configValue = configValue
 	g.visualcoding = visualcoding
 	g.uriop = URIOp