jump menu values

[nvdw]

Hello, I got a little problem.

I list all values from a database:

[code=php:0]$res_category = mysql_query("SELECT description FROM categories");
echo '<select name="categorylist" class="tveld">';
  while ($regel = mysql_fetch_array($res_category, MYSQL_ASSOC)) {
    foreach ($regel as $cat) {
      echo '<option value="'.$cat.'">'.$cat.'</option>';
    }
  }
echo '</select>';[/code]


Next to it I got a button and when i click it, it reloads the form.
Now I'd like the value I've chosen to be selected after the button click.
How can I do this?

Thank you

[xsist10]

[code]
<?php

echo "<form action='index.php' method='post'>";
$res_category = mysql_query("SELECT description FROM categories");
echo '<select name="categorylist" class="tveld">';
  while ($regel = mysql_fetch_array($res_category, MYSQL_ASSOC)) {
    foreach ($regel as $cat) {
      echo '<option value="'.$cat.'" '. ($_POST["categorylist"] == $cat ? "selected" : "") .'>'.$cat.'</option>';
    }
  }
echo '</select>';
echo "<input type='submit'>";
echo "</form>";

?>
[/code]

[nvdw]

ty for the reply, works perfect.