section customization

I'm trying to add a tag, and I want it to behave the same wat section 
tag
does. I made this

<!ENTITY % local.section.class 
"|mysectiontag">

<!ELEMENT AMLClass (mytag1, 
mytag2)>
<!ATTLIST 
AMLClass
        
%label.attrib;
         
%status.attrib;
         
%common.attrib;
         
%section.role.attrib;
         
%local.section.attrib;
>

where mytag1 and mytag2 are paragraphs

 

then in db31.dsl file I added 
this

(element mysectiontag ($section$))

I tested this and it 
seemed to work ok, but then when I tried to make a book
my mysectiontag were 
not added to book index

what else I need to modify to make mysectiontag 
to work the same way section
tag and see a link to each mysectiontag in book 
index?

thanks for your help

----------------------------------------
Juan Raúl Martínez 
Gutiérrez
TechnoSoft de México
Tel: +52 (81) 83-17-40-71 ext 110

 

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