diff --git a/doc/protocol.txt b/doc/protocol.txt
index 7276d7d..0f86e2d 100644
--- a/doc/protocol.txt
+++ b/doc/protocol.txt
@@ -50,7 +50,7 @@ The only constantly open connection:
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 ***** XMLHttp *****
 
-All other connections are to be closed (getJSON):
+All other connections are to be closed (getJSON or postForm):
 
 *********************************************************************************************************************************
 /getblock?path=<path>&id=<id>
@@ -132,12 +132,19 @@ All other connections are to be closed (getJSON):
 
 ********************************************************************************************************************************* 
 
-/getvars?time=<time>&id=<id>
+POST (postForm)
+
+/getvars
+
+Parameters for this POST request are passed like this :
+
+time=<time>&userconfiguration=<user_configuration>&id=<id>
 
   response: <varlist-message>
 
 <varlist-message> = {
   "type":"var_list",
+  "device":<device_name>,
   "blocks": [
      {
       "tag":"K_2", 
@@ -165,9 +172,7 @@ All other connections are to be closed (getJSON):
 
 ********************************************************************************************************************************* 
  
-/updategraph?id=<id>[&variables=<variable list>]
-
-  if <variables list> is given, the given variables will be updated with the graph-update-message
+/updategraph?id=<id>
 
   response: <accept-graph-message>
 
@@ -180,9 +185,7 @@ All other connections are to be closed (getJSON):
 
 ********************************************************************************************************************************* 
  
-/graph?time=<start>,<end>&variables=<variable list>&id=<id>
-
-  the given variables are added to the list of variables being updated with the graph-update-message
+/graph?time=<start>,<end>&variables=<variable list>&interval=<interval>&id=<id>
 
   response: <graph-draw-message>
 
@@ -204,3 +207,9 @@ All other connections are to be closed (getJSON):
   "type": "accept-console",
 }
 
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+***** Special route *****
+
+/export?time=<start>,<end>&variables=<selected_variables>&nan=<nan_representation>&interval=<binning_value>&id=<id>
+
+  This route is reached via a programatically triggered click on an <a> element (GET request)
\ No newline at end of file