success/invalid message not showing

Hi,

When I fill all the fields if all fields are right and click on the submit button this not showing any success message.

For this, i added js for showing the success message

jQuery(function(jQuery) {
document.addEventListener( 'wpcf7submit', function( event ) {
        jQuery('.submit-success').fadeIn();
        setTimeout( function() {
            jQuery('.submit-success').fadeOut();
        },5000);
    }, false );
})

but, when the field is invalid, this success message showing, but this time the invalid field message has to be shown. Hope you understand my issue.

Please help ASAP.

Thanks.

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