Hi again, Well I have partially achieved what I want. I took a good look on the Embperl::Syntax::* code and documentation again and figured out that I can do what I want by using _ep_sa (XML::Embperl::DOM::Element::iSetAttribut in DOM.xs) function instead of Embperl::Cmd::InputCheck.
In case anyone is interested I give here original and replaced code from EmbperlHTML.pm (actually I made a new syntax to prevent overwriting core). original: $self -> AddTag ('input', ['type', 'name', 'value'], ['src'], ['checked'], { perlcode => [ 'Embperl::Cmd::InputCheck (%$n%, %&*\'name%, %&*\'value%, %&\'checked%) ; %&=-type:radio|checkbox% ', #'_ep_sa(%$n%, \'checked\', \'checked\') if($fdat{%&*\'name%}); %&=-type:radio|checkbox% ', '$idat{%&*\'name%}=$fdat{%&*\'name%} ; _ep_sa(%$n%, \'value\', exists ($fdat{%&*\'name%})?$fdat{%&*\'name%}:\'\') ; %&!-value%', '$idat{%&*\'name%}=%&*\'value% ; ', ] }) ; replaced: $self -> AddTag ('input', ['type', 'name', 'value', 'checked'], ['src'], undef, { perlcode => [ #'Embperl::Cmd::InputCheck (%$n%, %&*\'name%, %&*\'value%, %&\'checked%) ; %&=-type:radio|checkbox% ', '_ep_sa(%$n%, \'checked\', \'checked\') if($fdat{%&*\'name%}); %&=-type:radio|checkbox% ', '$idat{%&*\'name%}=$fdat{%&*\'name%} ; _ep_sa(%$n%, \'value\', exists ($fdat{%&*\'name%})?$fdat{%&*\'name%}:\'\') ; %&!-value%', '$idat{%&*\'name%}=%&*\'value% ; ', ] }) ; But now I have another problem. When I write my html "xhtml" way (I need to do this because I want to send embperl output to XSLT processor) then checked or checked="checked" in replaced EmbperlHTML syntax is inserted at the wrong place For example <input type="checkbox" name="c1" value="v1" /> now when I use %fdat magic to check the checkbox embperl generates: old syntax: <input type="checkbox" name="c1" value="v1" / checked> my new modified syntax: <input type="checkbox" name="c1" value="v1" / checked="checked"> but I need it to generate: old syntax: <input type="checkbox" name="c1" value="v1" checked /> my new modified syntax: <input type="checkbox" name="c1" value="v1" checked="checked" /> So the "checked" is inserted after slash "/", it should be inserted before it. What would I have to change (Embperl::Syntax ?) or something else to insert slash in correct place? With kind regards, Villu