PHP & Jquery in WordPress

I’m trying to load some php into a div after the first image of a wordpress post. I thought that with Jquery’s selectors it was natural to use Jquery for the job.

Initially I tried:

$j(document).ready(function() {
$j(‘p:first’).append(‘<?php include(‘new-box.php’); ?>’)
});

But that didn’t seem to work.

Then, I DID successfully add the div using:

$j(document).ready(function() {
$j(‘p:first’).append(‘<div id=”new-box”>Ooga Booga
</div>’)
});

But I could not get anything into the div with .load. I first tried:

$j(document).ready(function() {
$j(‘p:first’).append(.load(“new-box.php”));
});

Then I tried putting in the div first then loading the content like so:

var $j = jQuery.noConflict();

$j(document).ready(function() {
$j(‘p:first’).append(‘<div id=”new-box”>hooga
</div>’)
$j(“#new-box”).load(“new-box.php”);
});

The file listed is in the theme dir of WP. My thoughts are that WP is making the relative url’s wonky, but I can’t see to get php calls like template_url() working in the .load().

Any suggestions?

Thanks!