changing css styles with php

[jarow]

I have a header.inc and a css style sheet that are called to each page of a website via php. In the style sheet there are two styles that I would like to change depending on the section of the website.

For example:
in the style sheet
css id "subnav" has background: #E8EDF5 and
cssi id "subtitle" has background #E8EDF5

however in each major section of the website I would like to change the background colors of the divs that have id "subnav" and "subtitle".

Is there type of php statement that I could place at the top of my website pages that would allow me to specify the colors of these two css ids?

Hope I have made this clear.

[piersk]

Why not try:

<?php
if(major_page)
{
?><style>stylesheet goes here</style>
<?php
}
else
{
?><style>other stylesheet goes here</style>
<?php
}