This article is intended as a guide on how to add JavaScript code to your plugins. Here is a practical example from WP Wall plugin. Start by hooking your function to wp_print_action:add_action('wp_print_scripts', 'WPWall_ScriptsAction');Next, add the scripts you want to use:function WPWall_ScriptsAction() { $wp_wall_plugin_url = trailingslashit( get_bloginfo('wpurl') ).PLUGINDIR.'/'.