function ActiveMenu(menuId, className,NoActiveClass) {
            isBreak = 0;
            var pageNames = ["index", "AboutUs", "Pro", "News", "Case", "Job", "Seavice", "Feedback", "Contact"]
            var fileList = [".html", ".aspx", ".asp"]


            var obj = document.getElementById(menuId).getElementsByTagName("A");

            //设置默认为不活动
            for (var i = 0; i < obj.length; i++) {
                obj[i].className = NoActiveClass;
            }


            var loc = window.location + "";



            //转换小写
            loc = loc.toLowerCase();
            for (var i = 0; i < pageNames.length; i++) {
                pageNames[i] = pageNames[i].toLowerCase();
            }
            for (var i = 0; i < fileList.length; i++) {
                fileList[i] = fileList[i].toLowerCase();
            }





            //查找url中各种后缀名
            var idx = -1;
            for (var i = 0; i < fileList.length; i++) {
                idx = loc.lastIndexOf(fileList[i]);
                if (idx != -1) {
                    break;
                }
            }

            loc = loc.substring(0, idx);

            for (j = 0; j < pageNames.length; j++) {
                idx = loc.indexOf(pageNames[j]);

                if (idx != -1) {
                    for (var i = 0; i < obj.length; i++) {

                        var href = obj[i].href + "";
                        href = href.toLowerCase();

                        idx = href.indexOf(pageNames[j]);

                        if (idx != -1) {
                            obj[i].className = className;
                            break;
                        }

                    }
                    break;
                }

            }


        }



        ActiveMenu("Menu", "ActiveTopNav", "");