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-rw-r--r--src/wp-includes/js/wp-list-revisions.js24
1 files changed, 24 insertions, 0 deletions
diff --git a/src/wp-includes/js/wp-list-revisions.js b/src/wp-includes/js/wp-list-revisions.js
new file mode 100644
index 0000000000..9c702c6595
--- /dev/null
+++ b/src/wp-includes/js/wp-list-revisions.js
@@ -0,0 +1,24 @@
+(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);