By default, the MouseOver button state also designates the current page. I prefer to have a different button color for the selected page which I have always done using a MouseDown layer for the highlighted button. This way the mouse over effect is different from the highlighted button.
But if you want your menu to be sticky (and who doesn't?) the buttons do not work correctly in Firefox. You need to double click on the button and that defeats the whole idea.
So here is my solution: http://gwpriester.xara.hosting/buttons/index.htm
It is very simple and it works, I think.
Create individual 2-state buttons, MouseOff and MouseOver instead of a Navigation Bar. Arrange and Link the buttons then use Copy > Paste in Place to add these to each page.
Modify the MouseOver button on each page in any way you wish. This modified button shows the current page.
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