Reply To: Display bug in the header of my site with the form

here is the script I added :

<script>
$( document ).ready(function() {
document.getElementById('DiapoHeader').classList.remove('ui-slider', 'ui-slider-horizontal', 'ui-widget', 'ui-widget-content', 'ui-corner-all');
$('span[class^="ui"]').remove();
});
</script>