| (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); |