changePort

function changePort(b) {
    if (window.location.port != b) {
        function c(d) {
            return (d.search(/\[.*?\]/) >= 0)
        }
        var a = window.location.hostname;
        if (c(window.location.host) && !c(a)) {
            a = "[" + a + "]"
        }
        window.location.href = window.location.protocol + "//" + a + ":" + b + window.location.pathname + window.location.search
    }
}