Sorting distinct results into different tables - php

Question

I have table that contains information on classes like CPR, First Aid, etc...I would like to sort and display this information into a table for each class type. So all of the CPR classes would be in a table then a new table for the first aid classes, etc...
The code below currently puts each class into it's own table...I need to group them together by className if possible.
Thanks in advance for any help.
Scott
<?php
$result = mysql_query("SELECT * FROM providerClasses WHERE clientId = '$clientId' ORDER BY className");
$i = 0; // Start count for BG color
while($row = mysql_fetch_array($result)) {
echo "<table border=\"0\" cellpadding=\"2\" cellspacing=\"2\" class=\"gridTable\" width=\"975\" style=\"margin-bottom:100px;\">";
echo "<tr class=\"gridHeader\">";
echo "<td width=\"88\" class=\"grid-header-cell\">Date</td>";
echo "<td width=\"161\" class=\"grid-header-cell\">Time</td>";
echo "<td width=\"143\" class=\"grid-header-cell\">Instructor</td>";
echo "<td width=\"179\" class=\"grid-header-cell\">Location</td>";
echo "<td width=\"8\" class=\"grid-header-cell\">Price</td>";
echo "<td width=\"210\" class=\"grid-header-cell\">Class Name</td>";
echo "</tr>";
$className = "$row[className]";
$date = "$row[date]";
$time = "$row[time]";
$instructor = "$row[instructor]";
$location = "$row[location]";
$price = "$row[price]";
$comments = "$row[comments]";
$i++;
// Determine background color of row
if ( $i & 1 ) { $style = "GridRow-Even"; //even
}
else { $style = "GridRow-Odd"; //odd
}
echo "<tr class=\"$style\">";
echo "<td> $date</td>";
echo "<td> $time</td>";
echo "<td> $instructor</td>";
echo "<td> $location</td>";
echo "<td> $price</td>";
echo "<td> $className</td>";
echo "</tr>";
} // end while
echo "</table>";
?>