Login im header?

<form method="POST" action="login.htm">
Name:<input name="logindata[name]" value="" type="text">
Passwort:<input name="logindata[kennwort]" value="" type="PASSWORD">
<input name="mode" value="1" type="hidden">
<input name="checklogin" value="1" type="hidden">
<input name="logindata[checklogin]" value="1" type="hidden">
<input value="Loginbutton" type="submit">
</form>