wpml language switcher shortcode

function language_switcher_fun( $atts ){
	ob_start();
	do_action('icl_language_selector');
	return ob_get_clean();
}
add_shortcode( 'language_switcher_shortcode', 'language_switcher_fun' );

You can use it like this [language_switcher_shortcode]

Include category id in body_class() and post_class()

Use this code on your themes functions.php to add current category id on body and post

function category_id_class($classes) {
	global $post;
	foreach ((get_the_category($post->ID)) as $category)
		$classes[] = 'cat-' . $category->cat_ID . '-id';
	return $classes;
}
add_filter('post_class', 'category_id_class');
add_filter('body_class', 'category_id_class');