Plugin: all pages in only one with anchors

Hi!

I’m building a website with WordPress as a CMS. And I’d like to know if there is a plugin that allows display all pages in only one. So, the links to each “pages” move you to its own anchor.

I mean, the pages are all loaded on the same page, and when you click on the menu, the link move down until its anchor point.

<!-- menu -->
<a href="#page1">PAGE 1</a> - PAGE 2 - PAGE 3 - PAGE 4 - PAGE N ...
--------------------------------------------

<!-- content -->
<a name="page1" id="page1">TITLE OF THE PAGE 1</a>
...

Thanks a lot!