获取网站地址的一些信息

http://localhost/TEST/Pages/TEST.aspx

var absoultpath=window.document.location.href//绝对地址    http://localhost/TEST/Pages/TEST.aspx

var relativepath=window.document.location.pathname//相对地址    /TEST/Pages/TEST.aspx

var len=absoultpath.indexOf(relativepate);//

var ip=absoultpath.substring(0,len);//http://localhost

var root=relativepath.substring(0,relativepath.substr(1).indexOf('1')+1); //根目录/TEST