Thank you for idea, but the problem comes forward again...
I've changed the lines that you suggested, but doesn't work properly online.

I uploaded your original template on http://www.phobextools.com/template7 with only 2 modifications: in the _home.htm I've put 2 lines for the "read more" buttons. Certainly, I've created the 2 htm files (_readmore1.htm and _readmore2.htm), than I wrote in the _home.htm the following lines in the proper places to make them work:
<a href="javascript:showPage('_readmore1.htm');">read more</a>
<a href="javascript:showPage('_readmore2.htm');">read more</a>
The issue is the same! After clicking on "read more" on the home page then clicking on any button in the menu then on an other, the menu lanes which were animated up to this point ruts and become all static.

Please help!
Thank you.