Hi, I am having problems concatenating variables. I have seven pull down menus. Selecting one from each menu will create a part number. I setup a test to see if this would work. I have one dtml doc with the menus. After a submit it calls this dtml doc: <form name="form1" method="post" action=""> <dtml-let pn="' ' "> <dtml-call concat_sub_type_to_part_num(st1,sub_type2)> <dtml-var st1>st1<dtml-var sub_type2>st2 <dtml-var expr="pn==st1+sub_type2"> <dtml-var pn> pn </dtml-let> </form> I call a python script concat_sub_type_to_part_num and pass two of the menu selections in this test. I tried to concat there but no luck. I can only see the variables I passed. the python script is: # Example code: # Import a standard function, and get the HTML request and response objects. pn=st1 + sub_type2 return pn Again any examples would be great, and thanks in advance. Larry McDonnell Proton Energy Systems 50 Inwood Rd. Rocky Hill, CT 06067 (860) 571-6533 ext. 531 Email:lmcdonnell@protonenergy.com www.protonenergy.com