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(function() {
var toolbar = document.getElementById('table-toolbar') || document.getElementById('toolbar');
if (!toolbar) return;
var scroller = document.querySelector('main') || document.querySelector('#main-area');
if (!scroller) return;
scroller.addEventListener('scroll', function() {
toolbar.classList.toggle('scrolled', scroller.scrollTop > 4);
}, { passive: true });
})();