Register Enqueue Scripts

// Register Script
function gn_add_script_theme() {

	wp_register_script( 'script1', 'http://www.monsite.com/script1.js', array( 'jquery' ), '1.2', true );
	wp_enqueue_script( 'script1' );

	wp_register_script( 'script2', 'http://www.monsite.com/script1.js', array( 'jquery' ), '2', false );
	wp_enqueue_script( 'script2' );

}

// Hook into the 'wp_enqueue_scripts' action
add_action( 'wp_enqueue_scripts', 'gn_add_script_theme' );