<?php

	add_action('wp_enqueue_scripts', 'my_scripts');
	function my_scripts() {
		// Add your JS file
		wp_enqueue_script( 'my_script', get_template_directory_uri().'/js/functions.js' );
		// Localize your script with server side data
		global $sitepress;
		wp_localize_script( 'my_script', 'my_var', array(
			'wpml_current_language' => $sitepress->get_current_language(),
			'any_other_var' => 'any_other_value',
		) );
	}