Fejl i TagWall

Hvor er fejlen? Dette script gemmer ikke havd der bliver skrevet i felterne men "reloader" bare sig selv når man klikker på "save"


tagwall.php
-----------------

<?
if($navn && $tag) {
$tag = ereg_replace("<","&lt;",$tag);
$tag = ereg_replace(">","&gt;",$tag);

$fil = "tagwall.txt";
$mam = time();
$tid = date("z.Gi",$mam);
$str  = "<TR><TD>$tid _<a href=mailto:$email>$navn</a><br>$tag<br><br><br></TD><TR>\n";

$fp = fopen($fil, r);
if($fp) {
$filArray = file($fil);
$result = implode("", $filArray);
$result = "$str$result";
fclose($fp);
}
$fp = fopen($fil, w);
if($fp) {
fputs($fp, stripslashes($result));
fclose($fp);
}

header("location: logtak.php");
}
?>

<html>
<head>



<style type="text/css">
body, html {
  scrollbar-face-color:#E0E0E0;
    scrollbar-arrow-color: #666666;
    scrollbar-track-color:#FFFFFF;
    scrollbar-shadow-color:#E0E0E0;
    scrollbar-highlight-color:#E0E0E0;
    scrollbar-3dlight-color:#FFFFFF;
    scrollbar-darkshadow-Color:#C0C0C0;
}
</STYLE>
</head>

<body>
<font face="verdana" size="1">


<form action="tagwall.php" method="post">

<INPUT TYPE="text" name="navn" SIZE="27" MAXLENGTH="200" NAME="felt" value="enter your name" style="font-family: Verdana; font-size: 7pt; font-weight: bold; color: #7B6B6B; padding: 2; border-color: #CCC4C4; border-width: 1; background-color: #FCFCFE; border-width: 1;" onFocus="this.value='';">

&nbsp;<INPUT TYPE="text" name="email" SIZE="27" MAXLENGTH="200" NAME="felt" value="enter email address" style="font-family: Verdana; font-size: 7pt; font-weight: bold; color: #7B6B6B; padding: 2; border-color: #CCC4C4; border-width: 1; background-color: #FCFCFE; border-width: 1;" onFocus="this.value='';">

<BR>

<textarea cols="57" rows="9" name="tag" style="font-family: Verdana; font-size: 7pt; font-weight: bold; color: #666666; padding: 2; border-color: #CCC4C4; border-width: 1; background-color: #FCFCFE; border-width: 1;">enter text</textarea>

<br><br>

<INPUT type="submit" name="skriv" value="save." style="font-family: Verdana; font-size: 7pt; font-weight: normal; color: #CC3300; padding: 2; border-color: #FFFFFF; border-width: 0; background-color: #FFFFFF; border-width: 0;">

<input type="button" value="back." OnClick="document.location='main.php';" style="font-family: Verdana; font-size: 7pt; font-weight: normal; color: #CC3300; padding: 2; border-color: #FFFFFF; border-width: 0; background-color: #FFFFFF; border-width: 0;">


</form>


</font>
</body>
</html>