Wordpress – Cleaning up the JavaScripts: - load jQuery at the end of the page - load own JavaScript - embed JS for Contact Form 7 only when needed.

functions.php

<?php
/**
 * Cleaning up the scripts
 */
function jc3_register_scripts() {
  // Put jQuery to the bottom
  wp_deregister_script( 'jquery' );
  wp_register_script( 'jquery', 'http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js', false, '1.7.1', true );
  wp_enqueue_script( 'jquery' );
  wp_register_script( 'jc3' , get_template_directory_uri() . '/jc3.js', false, '1.0', true);
  wp_enqueue_script( 'jc3' );

  // Include the Contactform7 JS-file only when used.
  global $post;
  if($post->post_name != "kontakt"){
    wp_deregister_script( 'contact-form-7' );
  }
}
add_action('wp_enqueue_scripts', 'jc3_register_scripts');

?>