um, there are two ways, first you can just use a bunch of html code in one PHP script that is called out whenever needed like this:
<?
if ($action == "goto") {
?>
some html
<?
elseif ($action == "skipto") {
?>
other html
<?
}
?>
will give u this
something.php?action=goto
or
something.php?action=skipto
and will show the html between the php tags..
or use MYSQL. (not sure how, but i know it can be done)