SyntaxHighlight GeSHi/JS

From Wikipedia

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 considerChangingReasonFocus() {
        if (!document.getElementById) {
                return;
        }
        var drop = document.getElementById('wpBlockReasonList');
        if (!drop) {
                return;
        }
        var field = document.getElementById('wpBlockReason');
        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 anonymousCheck = document.getElementById('wpAnonOnly');
        anonymousCheck.disabled = !isIp && !isEmpty;
 
        var autoblockCheck = document.getElementById('wpEnableAutoblock');
        autoblockCheck.disabled = isIp && !isEmpty;
        */
 
        var anonymousRow = document.getElementById('wpAnonOnlyRow');
        anonymousRow.style.display = (!isIp && !isEmpty) ? 'none' : '';
 
        var autoblockRow = document.getElementById('wpEnableAutoblockRow');
        autoblockRow.style.display = isIp && !isEmpty ? 'none' : '';
}
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