[galaxy-dev] Reserved variables in param tags

Hi, I have a question regarding the param tag. I would like to pass on the user email to a external python script. I tried to use it like this: <param name="email" type="hidden" value=$__user_email__ /> <param name="experiment" type="select" label="Experiment" help="select Experiment" refresh_on_change="true" dynamic_options="getExperiments(email)"/> This does not work. Ideally I would like to have something like this: dynamic_options="getExperiments($__user_email__)" Has someone done this before? Cheers Manuel -- Manuel Kohler Center for Information Sciences and Databases (C-ISD) Department of Biosystems Science & Engineering (D-BSSE) ETH Zurich, Maulbeerstrasse (1078, 1.02), CH-4058 Basel, +41 61 387 3132