<input type="text" style=" width:300px" name="new" id=new">
<script>
var nurl = document.referrer//来源url
document.URL //获取当前域名
document.title//获取当前页面标题
document.getElementById('new').innerHTML = nurl</script>
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//获取域名host = window.location.host
host2=document.domain
if(host!="xxx.com") alert("illegal")
<script type="text/javascript">onload = function ()
{
var locurl = window.location.host //获取当前页主域名
var tiaozhuan = document.getElementById("tiaozhuan")
if(locurl == 'C')
{
tiaozhuan.src='D'
}
else
{
tiaozhuan.src='B'
}
}
</script>
<iframe id="tiaozhuan" src="B" scrolling="no" frameborder="0" marginwidth="0px" marginheight="0px"></iframe>
