To use Google-hosted JavaScript libraries Just add this code to your functions.php file
if( !is_admin()){
wp_deregister_script(’jquery’);
wp_register_script(’jquery’, (”http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js”), false, ‘1.3.2?);
wp_enqueue_script(’jquery’);
}
Now call your JavaScript file, after the wp_head function in header.php file.
Here yourscrip=name of your javascript file.