( function( grecaptcha, sitekey ) {

	var wpcf7recaptcha = {
		execute: function() {
			grecaptcha.execute(
				sitekey,
				{ action: 'homepage' }
			).then( function( token ) {
				var forms = document.getElementsByTagName( 'form' );

				for ( var i = 0; i < forms.length; i++ ) {
					var fields = forms[ i ].getElementsByTagName( 'input' );

					for ( var j = 0; j < fields.length; j++ ) {
						var field = fields[ j ];

						if ( 'g-recaptcha-response' === field.getAttribute( 'name' ) ) {
							field.setAttribute( 'value', token );
							break;
						}
					}
				}
			} );
		}
	};

	grecaptcha.ready( wpcf7recaptcha.execute );

	document.addEventListener( 'wpcf7submit', wpcf7recaptcha.execute, false );

} )( grecaptcha, '6LdgU7MUAAAAAJEvAF3dTzvjpEOe--u_e3o5OBwH' );