Hello, thanks for your answer. It didn't seem to work Peraphs this code (used inside an external python method)is not valid: while j < Col2: s = s + "<td>" s = s + '<input type="file" name="filename%s" VALUE="">' s = s % str(((i*Col2)+j+1)) #gives the right id to each filename variable s = s + "</td>" j = j + 1 Many thanks for your effort, Yannick -----Original Message----- From: Andy McKay [mailto:andym@ActiveState.com] Sent: 21 March 2001 20:26 To: servel yannick; zope@zope.org Subject: Re: [Zope] Problem with <input type=hidden value="<dtml-var filenamex>" name =filenamex> You cannot nest dtml tags inside another dtml tag, <dtml-var filename<dtml-var sequence-number>> is invalid. Untested: <dtml-var "_[filename+_['sequence-item']]"> Is probably what you want. -- Andy McKay.