there is a way. It is in the idpf specification for ePub. It would look something like:
Code:
<div class="myhead" style="display: oeb-page-head">
The OEB Publication Structure: Introduction
</div>
This would set up the header and it would remain in place until another statement replaced it. There are no particular rules on how a reader needs to treat this statement. For example, it could treat it like a physical book and play the line at the top of each page or it could make it a menu item that only gets displayed when selected. Whether any book rendering tool actually supports this is a different question.
Dale