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EDIT :: wp-list-revisions.js

/** * @output wp-includes/js/wp-list-revisions.js */ (function(w) { var init = function() { var pr = document.getElementById('post-revisions'), inputs = pr ? pr.getElementsByTagName('input') : []; pr.onclick = function() { var i, checkCount = 0, side; for ( i = 0; i < inputs.length; i++ ) { checkCount += inputs[i].checked ? 1 : 0; side = inputs[i].getAttribute('name'); if ( ! inputs[i].checked && ( 'left' == side && 1 > checkCount || 'right' == side && 1 < checkCount && ( ! inputs[i-1] || ! inputs[i-1].checked ) ) && ! ( inputs[i+1] && inputs[i+1].checked && 'right' == inputs[i+1].getAttribute('name') ) ) inputs[i].style.visibility = 'hidden'; else if ( 'left' == side || 'right' == side ) inputs[i].style.visibility = 'visible'; } }; pr.onclick(); }; if ( w && w.addEventListener ) w.addEventListener('load', init, false); else if ( w && w.attachEvent ) w.attachEvent('onload', init); })(window);

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