JS refresh window, close windows

document.location.href=document.location.href;

<a href="javascript:window.opener=null;window.open('','_self');window.close();">Close < /a>

<script language="javascript">
// This script is a generic script for IE6 and IE7.
function custom_close(){
if 
(confirm("Are you sure you want to close this page? ")){
window.opener=;
window.open('','_self');
window.close();
}
else{}
}
</script>  
 <input id="btnClose" type="button" value="Close the page "onClick=" custom_close () "/>";