Hi, I hope this is the correct forum to add this query, and any help appreciated. I have the following zpt which pulls in the users userid - $uid and some text generated from a python script (myEV - $pass). It works fine however i need to pass the variables along in a form rather than a url. And i'm stuck. the zpt url <span tal:define="pass here/myEv"> <a href="" tal:define="uid python:member.getProperty('uid')" tal:attributes="href string:https://domain/siw_sso.signonUSER= $uid&TEXT=$pass" method="post">SSO test</a> </span> the form needs to be in a format similar to below <form method="post" action="https://domain/siw_sso.signon"> <input type="hidden" name="SSO" value="USER=ws0dha&HASH=daf768422238acd0899155a1757c9b5d"> This is a test of hardcoded single-signon <input type="submit" value="for ws0dha"> </form> so somehow i need to pass something like below <input type="hidden" name="SSO" value="USER=$uid&TEXT=$pass"> hope this makes sense and is it possible? thank you dean --------------- Dean Hale Web Development Manager Library Services University of Sunderland w: https://my.sunderland.ac.uk t: +44 (0) 191 515 2424 f: +44 (0) 191 515 2904