Wont set cookie from post

[sekond]

any idea why this wont set the cookie?

<?if(isset($submit)){
setcookie('postname', $newname, time()*36);

}
echo "$postname";?>

<form method="POST" action="">
<p>Settings:</p>
Post Name: <input type="text" name="newname" size="20" value="<?echo $postname;?>"></p>
<p>&nbsp;</p>
<p><input type="submit" value="Submit" name="submit"><input type="reset" value="Reset" name="B2"></p>
</form>

[laserlight]

It may set the cookie, but you cant access the cookie (which should be done as $_COOKIE['postname']) until the next page load.