view data from db..using forms

[noy_ipunk]

thanks a lot for your reply...sorry for not including the code.
What I'm trying to make is smt like:

$query= mysql_query("select * from test where flag=\"\" ") or die(mysql_error()) ;

$hold=1;
while(($row = mysql_fetch_array($query)) and ($hold==1 ))
{
    echo "<form method=post action=$PHP_SELF >";

    $keynr = $row["keynr"];
    $adres = $row["adres"];
    $postcode = $row["postcode"];
    $woonplaats = $row["woonplaats"];

    echo "keynr = $keynr ;<br>
    adres = $adres ;<br>
    postcode = $postcode ;<br>
    woonplaats = $woonplaats ;<br>";

    $hold=0;

    echo "<input type=submit value=SELECT><br>";
    $query_add_flag = "update test set flag='yes' where keynr=$keynr ";
        mysql_query($query_add_flag)or
              die (mysql_error());
    echo "<input type=button value=EXIT onclick=self.close()>";

    echo "</form>";
}

The problem is..as soon as the .php -file is called..it gives automatically the first line ($keynr) flag 'yes'. while what I need is..of course, to have it set to yes after the user click the button.

Can someone help how the logic goes here....

noy