asp.net 去掉IE的页眉页脚

<script language="JavaScript">
var hkey_root,hkey_path,hkey_key
hkey_root="HKEY_CURRENT_USER"
hkey_path="\\Software\\Microsoft\\Internet Explorer\\PageSetup\\"
function pagesetup_null()
{
  try{
    var RegWsh = new ActiveXObject("WScript.Shell")
    hkey_key="header"   
    RegWsh.RegWrite(hkey_root+hkey_path+hkey_key,"")
    hkey_key="footer"
    RegWsh.RegWrite(hkey_root+hkey_path+hkey_key,"")
  }catch(e){}
}
</script>