Url栏目导航判断

String.prototype.Trim = function() {
    return this.replace(/(^\/*)|(\/*$)/g, "");
}
window.onload = function() {
    var url = location.pathname;
    var url2 = url.substring(1, url.indexOf(‘.‘) > 1 ? url.indexOf(‘.‘) : url.length);
    var urllist = url2.split("/")
    var av = document.getElementsByClassName(‘nav‘);
    for(var v = 0; v < av.length; v++) {
        cx(av[v].getElementsByTagName(‘a‘));
    }
    function cx(as){
        if(url.length > 1) {
            outl:for(var i = 0; i < as.length; i++) {
                for(var j = 0; j < urllist.length; j++)
                    if(as[i].getAttribute("href").Trim().slice().indexOf(urllist[j]) > -1 && as[i].getAttribute("href") != ‘/‘)
                    {
                        as[i].className = as[i].className + " active";
                        continue outl;
                    }
            }
        } else {
            for(var i = 0; i < as.length; i++) {
                if(as[i].getAttribute("href") == ‘/‘) {
                    as[i].className = as[i].className + " active";
                }
            }
        }
    }
}