js判断当前域名_js获取当前域名

if(location.toString().indexOf("abc.com") <= -1)     /*如果当前网址中没有abc.com*/
{
document.location.href="/b.htm";   /*跳转到b.htm*/
}
else
{
document.location.href="/a.htm";   /*有的话，跳转到a.htm*/ }

<script language="javascript">
//获取域名
host = window.location.host;
host2=document.domain;

//获取页面完整地址
url = window.location.href;

document.write("<br>host="+host)
document.write("<br>host2="+host2)
document.write("<br>url="+url)
</script>