а что не так может быть в хтмл разметке?
<form action="add/event.add.php" method="post" name="form4" onsubmit="return check_form(this);">
<input type="hidden" name="cat" value="<? echo $cat; ?>">
<input type="hidden" name="event" value="orders.add">
<input type="hidden" name="data" value="<? echo date("Y-m-d H:i:s"); ?>">
<tr height="40">
<th width="200" align="left" valign="middle"><? echo $order_arr[3]; ?>:</th>
<td valign="middle"><input type="text" name="month" style ="width: 100px;"> <b><? echo $order_arr[4]; ?></b>:
<input type="text" name="year" style="width: 185px;"/></td>
</tr>
<tr height="40">
<th width="200" align="left" valign="middle"><? echo $order_arr[5]; ?>:</th>
<td valign="middle"><input type="text" name="client_title1" style="width:140px;">
<select NAME="client_title2" SIZE=1 style="width:200px;">
<?php mysql_query('SET NAMES cp1251');
$query3 = mysql_query ("select * from `clients` GROUP BY `client_title` ") or die (mysql_error());
while ($temp3 = mysql_fetch_assoc($query3)) {
echo "<option value='".$temp3['client_id']."'";
if ($temp3['client_id'] == $row2['client_id']) {echo " selected";}
echo ">".$temp3['client_title']."</option>";
}?>
</select>
</td>
</tr>
<tr height="40">
<th width="200" align="left" valign="middle"><? echo $order_arr[0]; ?>:</th>
<td valign="middle"><input type="text" name="order_doc" value="<? echo $row2['order_doc']; ?>" style="width:100px;"> <b><? echo $order_arr[1]; ?></b>:
<input type="text" name="order_cost" value="<? echo $row2['order_cost']; ?>" style="width:184px;"></td>
</td>
</tr>
<tr height="40">
<th width="200" align="left" valign="middle"><? echo $order_arr[6]; ?>:</th>
<td valign="middle"><input type="text" name="side_id" style="width:100%;"></td>
</tr>
<tr height="40">
<th width="200" align="left" valign="middle"><? echo $order_arr[7]; ?>:</th>
<td valign="middle"><textarea name="order_comment" cols="4" style="width:100%; font-family: Verdana; font-size:12px;"><? echo $row2['order_comment']; ?></textarea></td>
</tr>
<tr>
<td></td>
<td><div align="right"><input type="submit" value="Сохранить"></div><br>
<div class="div_mess"><? echo $_SESSION['mess']; ?></div></td>
</tr>
</form>
</table>
</div><br>
ну вот страница для которой и писался валидатор который в первом посте темы..