Link host
<html> <body> <script language="JavaScript"> function function1() { alert(document.getElementById("myLink").host); } </script> <a id="myLink" href="http://www.java2s.com" target="_blank">java2s.com Home Page</a> <button onclick="function1();">Host Value</button> <button onclick="alert(document.all.myLink.hostname);">Host Name</button> </body> </html>