Insert subrecord

I have been wonderfully pleased with the help I have received thus far in 
this forum- thanks to all.  Hopefully I will be educated enough to 
contribute myelf soon.

I have a table displaying results from a sql table:

<tr tal:repeat="item here/sqlvw_classes">

The table accurately displays the following columns from the table:

classid
class_title
class_desc
class_price

I would like to add a hyperlink that garners the <classid> and use it to set 
the value in  another form for insertion of a new record in a subtable.


This is what I have so far:

<a tal:attributes="href 
string:${request/URL1}/fmnewsched?classid=${item/classid}"
              href="fmnewsched">Schedule class</a>



I am having trouble using the TAL:ATTRIBUTE tag in the target form to 
correctly inherit the <classid> value set in the above statement.  I would 
appreciate suggestions, and thanks!

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