js获取网站根路径(站点及虚拟目录)，获得网站的根目录或虚拟目录的根地址

    //js获取网站根路径(站点及虚拟目录)，获得网站的根目录或虚拟目录的根地址     
    function getRootPath(){
        var strFullPath=window.document.location.href;
        var strPath=window.document.location.pathname;
        var pos=strFullPath.indexOf(strPath);
        var prePath=strFullPath.substring(0,pos);
        var postPath=strPath.substring(0,strPath.substr(1).indexOf(\'/\')+1);
        return(prePath+postPath);
       }
    */
    
    //js获取网站根路径(站点及虚拟目录)，获得网站的根目录或虚拟目录的根地址   
    function getRootPath() {
       var pathName = window.location.pathname.substring(1);
       var webName = pathName == \'\' ? \'\' : pathName.substring(0, pathName.indexOf(\'/\'));
       //return window.location.protocol + \'//\' + window.location.host + \'/\'+ webName + \'/\';
       return window.location.protocol + \'//\' + window.location.host + \'/\'+ webName;
       } 

 

http://blog.csdn.net/vbangle/article/details/5906632