+<%doc>
+
+Example:
+
+ include( '/elements/search-cust_main.html,
+ 'field' => 'custnum',
+ #slightly deprecated old synonym for field#'field_name'=>'custnum',
+ 'find_button' => 1, #add a "find" button to the field
+ 'curr_value' => 54, #current value
+ 'value => 32, #deprecated synonym for curr_value
+ );
+
+</%doc>
+<INPUT TYPE="hidden" NAME="<% $field %>" ID="<% $field %>" VALUE="<% $value %>">