double insert

i dont know why but my script is inserting the record then a blank record. i dont know why, please help

<?php

include("connect.php");
$feedname = $_POST['feedname'];
$feedurl = $_POST['feedurl'];

$query = "INSERT INTO feeds (id, feedname, feedurl)
VALUES ('', '$feedname', '$feedurl')";

$results = mysql_query($query) or die
("Could not execute query : $query." . mysql_error());

if ($results)
{
echo "Details added.";
}
mysql_close();
?>

Are you using a javascript submit() function call from an input having type="submit" ?

this is the form code:

<form id="FormName" action="addFeed.php" method="post" name="FormName">
<table width="448" border="0" cellspacing="2" cellpadding="0">
<tr>
<td width = "150">
<div align="right">
<label for="feedname">feedname</label>
</div>
</td>
<td>
<input id="feedname" name="feedname" type="text" size="25" value="" maxlength="255">
</td>
</tr>
<tr>
<td width = "150">
<div align="right">
<label for="feedurl">feedurl</label>
</div>
</td>
<td>
<input id="feedurl" name="feedurl" type="text" size="25" value="" maxlength="255">
</td>
</tr>
<tr>
<td width="150">
</td>
<td>
<input type="submit" name="submitButtonName" value="Add">
</td>
</tr>
</table>
</form>

Is the form and the php form processing code in the same file? If so, show that whole file so that the program flow can be seen.

Also, are you doing any url rewriting in a .htaccess file or are you doing any redirecting?

Different files, no redirect, no .htaccess