mssql_fetch_row();

Hi, In my script, I take our the first 20 entries of my SQL table like this: $query = "SELECT * FROM updateHistory WHERE AIX = '$search' ORDER BY VAX"; $result = mssql_query($query); for ($i = $start; $i < mssql_num_rows($result); ++$i) { $updateHistory = mssql_fetch_row($result); // code here.... $numRecord+=1; if ($numRecord==20) { break; } } THis code successfully processing the first 20 entries of the data I took out from the query. My question is, how do I take out the 21st to the 40th entries?...or 41st to 60th entries?..basically I want it to function so that it can process the 'next 20' each time. Please advise, thanks Kelvin