--- /dev/null
+/*!
+ * JavaScript for Special:Undelete
+ */
+jQuery( function ( $ ) {
+ $( '#mw-undelete-invert' ).click( function () {
+ $( '.mw-undelete-revlist input[type="checkbox"]' ).prop( 'checked', function ( i, val ) {
+ return !val;
+ } );
+ } );
+} );