Reversing index.xxx order for one domain

I have a domain running of which I would like to reverse the order of
displaying index files:

part of my httpd.conf

-- cut --

<IfModule mod_php4.c>
DirectoryIndex index.php index.html
</IfModule>

-- cut --

So first is index.php and second comes index.html

For a specific domein I want to force first showing index.html and then
showing index.php

part of my httpd.sites

-- cut --

<VirtualHost *>
ServerName www.mysite.com
ServerAdmin webmaster RemoveThis @mysite.com
DocumentRoot /usr/www/mysite.com/
CustomLog /log/websites/mysite.com combined
</VirtualHost>

-- cut --

Can you pls tell my what I have to ad to the VirtualHost section to force
this to happen?
Floor