JPA entities on selectmany and headers

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Hi,
i'm new to jsf to bare with me :)
i've created a navigotr.jsf that is just a myfaces panelnavigation2 when  i
add it's code to the page everyting works , when i use jsp:include it
doesn't get rendered it only inclueds the html tags that are in the
.navigator.jsf page and doesn't include any thing that is inside the f:view
? (there's nothing inside the body tags)
second problem i've encoutared is how to convert a JPA entity that i can't
construct from a string value toa a specific entity ?
is there a way to map an entity trough a hashmap and maybe reconstructing it
trough it's key ?
thanks