What am i doing wrong here? I am trying to access a variable passed from a form. I named the input field current_delivery plus a Cust_ID(see below). The variable that i am tried to accessed is part a string and a variable. I've tried to contatenate the "string + variable" with the let tag and used that to access the REQUEST variable. <input type=text name="current_delivery<dtml-var Cust_ID>" value=""> <input type=hidden name="rec.Cust_ID:records"> ---------------------------------------------------------------------- <dtml-in rec mapping> <dtml-let delivery="'current_delivery'+Cust_ID"> <dtml-var "REQUEST['delivery']"> </dtml-let delivery> </dtml-in rec mapping> Basically, i am just trying to access the first input field from above: <dtml-var expr="'current_delivery'+Cust_ID"> Can someone help me with the syntax please? Appreciate any suggestions. Thanks, Mike