JS正则获取参数值

var geturl = function(url){
    var ret = {};
    var queryStr=url.replace(/^[^\?#]*\??/g,'').replace(/#DIALOG_.*$/g,'');
    queryStr.replace(/([^=&]+)=([^&]*)/g, function (a, b, c) {
        b = decodeURIComponent(b);
        c = decodeURIComponent(c);
        ret[b] = c;
        ret[b.toLowerCase()] = c;
    });
    return ret;
}