php กับการตรวจสอบที่นั้งชม ละครเวที จาก MySQL ช่วยผมด้วย

<?php
include("config.inc.php");
$username = $_POST["username"];
$password = $_POST["password"];
$md5username = md5($username."8;p");
$sql = "SELECT * FROM nourneer WHERE username='$username' AND password='$password'";
$dbquery = mysql_db_query($dbname,$sql);
$num_rows = mysql_num_rows($dbquery);
	if($password==substr($md5username,0,6)&&$num_rows==1) {
		$strSQL = "SELECT * FROM nourneer WHERE (username LIKE '%".$username."%')";
		$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
		$objResult = mysql_fetch_array($objQuery);
		$id = $objResult["id"];
		$round = $objResult["round"];
		$seat = $objResult["seat"];
		if($objResult["confirm"] == 1) {
			$confirm = "Yes";
			} else {
				$confirm = "No";
				}
		for($row = 'A'; $row <= 'O'; $row++) {
			$colom = 0;
			for($colom = 0; $colom <= 30; $colom++) {
				if($colom < 10) {
					$aseat = "$row"."0"."$colom";
					} else {
						$aseat = "$row"."$colom";
						}
				$strSQL = "";
				$strSQL = "SELECT * FROM nourneer WHERE round = '".$round."' AND seat = '".$aseat."' ";
				$objQuery = mysql_query($strSQL);
				$objResult = mysql_fetch_array($objQuery);
				if($objResult) {
				$status[$aseat]="disabled";
				}else {
					}
				
			}
		}
	} else {
		$code_error = "กรอกข้อมูลผิดพลาด กรุณากรอกใหม่อีกครั้ง";
		session_register("code_error");
		header("location:./login.php");
	}
	mysql_close();
?>

...
 <td><input type="button" name="O27" id="O27" value="O27" <? echo"$status[O27]"?> onClick="setText(this.value);"></td>
    <td><input type="button" name="O26" id="O26" value="O26" <? echo"$status[O26]"?> onClick="setText(this.value);"></td>
    <td><input type="button" name="O25" id="O25" value="O25" <? echo"$status[O25]"?> onClick="setText(this.value);"></td>
    <td><input type="button" name="O24" id="O24" value="O24" <? echo"$status[O24]"?> onClick="setText(this.value);"></td>
    <td><input type="button" name="O23" id="O23" value="O23" <? echo"$status[O23]"?> onClick="setText(this.value);"></td>
    <td><input type="button" name="O22" id="O22" value="O22" <? echo"$status[O22]"?> onClick="setText(this.value);"></td>
    <td><input type="button" name="O21" id="O21" value="O21" <? echo"$status[O21]"?> onClick="setText(this.value);"></td>
    <td><input type="button" name="O20" id="O20" value="O20" <? echo"$status[O20]"?> onClick="setText(this.value);"></td>
...