--- /dev/null
+addOnloadHook(considerChangingExpiryFocus);
+
+function considerChangingExpiryFocus() {
+ if (!document.getElementById) {
+ return;
+ }
+ var drop = document.getElementById('wpBlockExpiry');
+ if (!drop) {
+ return;
+ }
+ var field = document.getElementById('wpBlockOther');
+ if (!field) {
+ return;
+ }
+ var opt = drop.value;
+ if (opt == 'other') {
+ field.style.display = '';
+ } else {
+ field.style.display = 'none';
+ }
+}
+
+function updateBlockOptions() {
+ if (!document.getElementById)
+ return;
+
+ var target = document.getElementById('mw-bi-target');
+ if (!target)
+ return;
+
+ var addy = target.value;
+ var isEmpty = addy.match(/^\s*$/);
+ var isIp = addy.match(/^(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}|:(:[0-9A-Fa-f]{1,4}){1,7}|[0-9A-Fa-f]{1,4}(:{1,2}[0-9A-Fa-f]{1,4}|::$){1,7})(\/\d+)?$/);
+
+ var anonymousRow = document.getElementById('wpAnonOnlyRow');
+ if( anonymousRow ) {
+ anonymousRow.style.display = (!isIp && !isEmpty) ? 'none' : '';
+ }
+
+ var autoblockRow = document.getElementById('wpEnableAutoblockRow');
+ if( autoblockRow ) {
+ autoblockRow.style.display = isIp && !isEmpty ? 'none' : '';
+ }
+
+ var emailblockRow = document.getElementById('wpEnableEmailBan');
+ if( emailblockRow ) {
+ emailblockRow.style.display = isIp && !isEmpty ? 'none' : '';
+ }
+
+ var hideuserRow = document.getElementById('wpEnableHideUser');
+ if( hideuserRow ) {
+ hideuserRow.style.display = isIp && !isEmpty ? 'none' : '';
+ }
+}