if you want to input a nav like this, you will have to make each diffrent item in your menu a diffrent table, make sure all the tables have id's and a background color
then put this code under the nav..... or the php include if you want to use that
if its put on top it will load to fast and it will not find the menu, it needs to load after the menu

<script language="JavaScript1.2">
<!--
function flashit(){
if (!document.all)
return
if (name.style.backgroundColor=="unhigh lighted color")
name.style.backgroundColor="high lighted color"
else
name.style.backgroundColor="high lighted color"
}
setInterval("flashit()", 9999)
//-->
</script>

change "name" to the id of the table that you want high lighted, being what part of the nav, as they should all be diffrent tables with diffrent id's
you will need to edit the script for each page so that it high lights the right table/menu item
change "unhigh lighted color" to the color of the table/menu item you want to change
and change "highlighted color" to the new color
this locks onto the table background color.... not the cell background color if there is a cell background color you will not be able to see the table background

hope you understand... if not add my msn... killjoy.j@ihug.co.nz