关于JavaScript打印去掉页眉页脚

<script language="JavaScript">
var hkey_root,hkey_path,hkey_key;
hkey_root="HKEY_CURRENT_USER";
hkey_path="\\Software\\Microsoft\\Internet Explorer\\PageSetup\\";

// 设置网页打印的页眉页脚为空
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){ alert(e); }
}

// 设置网页打印的页眉页脚为默认值
function pagesetup_default()
{
try{
  var RegWsh = new ActiveXObject("WScript.Shell");
  hkey_key="header";    
  RegWsh.RegWrite(hkey_root+hkey_path+hkey_key,"&w&b页码，&p/&P");
  hkey_key="footer";
  RegWsh.RegWrite(hkey_root+hkey_path+hkey_key,"&u&b&d");
}catch(e){ alert(e); }
}

function printMethod(){
   pagesetup_default();
  window.print();
}
</script>