Get selected value from one dropdown list to another? HELP!!!

[debian23]

Hello guys and PHP Developers. I'm new to programming and have a small problem but i cant find solution. So the problem is that i have one page index.php and dropdown list, when i click the button ,,edit,, with method="post" and action="edit.php" im redirected to edit.php. On the edit.php i like to have the same dropdown list with selected value that i before selected on index.php.

 

Please guys can anyone help me !?

[Barand]

$sql = "SELECT id, name FROM mytable";
$res = mysql_query($sql);
echo "<select name='myselect'>";
while (list($id, name) = mysql_fetch_row($res)) {
    $select = $id == $_POST['myselect'] ? 'selected=selected' : '';       // posted id now selected
    echo "<option value='$id' $select>$name</option>";                
}
echo "</select>";