WordPress: Removes the version parameter from the script URI for the Google CDN.

strip-query-string.php

<?php
// for the functions.php
add_filter('script_loader_src', 'toscho_script_loader_filter');

/**
 * Removes the version parameter from the script URI for the Google CDN.
 *
 * @param  string $src Original script URI
 * @return string
 */
function toscho_script_loader_filter($src)
{
	// Not our business.
	if ( FALSE === strpos($src, 'http://ajax.googleapis.com/') )
	{
		return $src;
	}
	// Separate the version parameter.
	$new_src = explode('?', $src);

	// Just the URI without the query string.
	return $new_src[0];
}