if else and sql query help

[bimmer528]

the script is just passing the second query. Im not sure how to do this so am asking for some help.

$colname_avg = "ladder";
if (isset($HTTP_GET_VARS['top_fraggers'])) {
$colname_avg = (get_magic_quotes_gpc()) ? $HTTP_GET_VARS['top_fraggers'] : addslashes($HTTP_GET_VARS['top_fraggers']);
}
if ($colname_avg == 'ladder') { //i think the problem lies here.
$query_avg =sprintf( "A query WHERE top_fraggers= '%s'
GROUP BY top_fraggers", $colname_avg);
$avg = mysql_query($query_avg) or die(mysql_error());
$row_avg = mysql_fetch_assoc($avg);
$totalRows_avg = mysql_num_rows($avg);
} else {
$query_avg =sprintf( "A Differant queryWHERE top_fraggers= '%s'
GROUP BY top_fraggers", $colname_avg);
$avg = mysql_query($query_avg) or die(mysql_error());
$row_avg = mysql_fetch_assoc($avg);
$totalRows_avg = mysql_num_rows($avg);
}