preventing an include() from taking over?

I've got a complicated little thing going on here. I have page INDEX.HTM with a 2 column table. I want the entire page to remain the same, except column 1. In column 1 I have an include() which contains a javascript scrolling menu where on click of an option it calls up the selected page. As it is, when it calls up that page, it replaces the whole of INDEX.HTM with that page. This may be more of an HTML question and not PHP, but is there a way to get the resulting page from the scrolling menu to stay within the table column that contains the include()? Thanks for any suggestions! Liam liam @ celticbear . com