ทำหน้าแก้ไขข้อมูลแบบไม่สลับหน้า แต่กดแล้วไม่ขึ้นฟอร์มแก้ไข เกิดจากอะไรค่ะ

<? $objConnect = mysql_connect("localhost","root","1234") or die("Error Connect to Database");
				$objDB = mysql_select_db("db_intern");
				mysql_query("SET NAMES UTF8");
				$strSQL = "SELECT * FROM admin, user_login where admin.id=user_login.id";
				$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
			?>
          </p>
          <table width="500" class="data1">
            <tr class="data1">
              <th class="data1" width="13%">ลำดับ</th>
              <th class="data1" width="29%">ชื่อ-สกุล</th>
              <th class="data1" width="18%">username</th>
              <th class="data1" width="19%">password</th>
              <th class="data1" width="10%">แก้ไขข้อมูล</th>
              <th class="data1" width="11%">ลบข้อมูล</th>
            </tr>
            <? 	$i=1;
				$color = array("#EEEEEE","#F5F5F5");
				while($objResult = mysql_fetch_array($objQuery)){
			?>
            <tr bordercolor="#EBEBEB" bgcolor="<?=$color[($i%2)]?>">
              <td align="center"><?=$i++?></td>
              <td align="left"><?=$objResult["admin_title"];?>
                <?=$objResult["admin_name"];?> 
                <?=$objResult["admin_sname"];?></td>
              <td align="left"><?=$objResult["user_log"];?></td>
              <td align="left"><?=$objResult["pass_log"];?></td>
              <td align="center"><a href="#input-box1?admin_id=<?=$objResult["admin_id"];?>"><img src="images/file_edit.png" width="32" height="32" /></a></td>
              <td align="center"><a href="admin_del_admin.php?admin_id=<?=$objResult["admin_id"];?>" onclick="return confirm('คุณต้องการลบ คุณ<?=$objResult["admin_name"];?> <?=$objResult["admin_name"];?> ออกจากระบบหรือไม่ ? ')"><img src="images/Delete.png" width="32" height="32" /></a></td>
            </tr>
            <? 
		}
        ?>
          </table>
          <p>&nbsp;</p>
          <div class="clear"></div>
          </p>
          <div id="input-box1" class="login-popup"> <a href="#" class="close"><img src="img/icon/delete.png" class="btn_close" title="ปิดหน้าต่างนี้" alt="Close" /></a>
            <form method="post" action="admin_edit_admin1.php?admin_id=<?=$_GET["admin_id"];?>" id="admin_edit_admin1">
         <?		$objConnect = mysql_connect("localhost","root","1234") or die("Error Connect to Database");
				$objDB = mysql_select_db("db_intern");
				$strSQL = "SELECT * FROM admin, user_login where admin.id=user_login.id and admin_id = '".$_GET["admin_id"]."' ";
				$objQuery = mysql_query($strSQL);
				$objResult = mysql_fetch_array($objQuery);
				if(!$objResult){
					echo "ไม่พบข้อมูล";
				}
				else{
		  ?>
            </p>
            <table width="473" border="1" align="center" cellpadding="1" cellspacing="1" bordercolor="#000000" bgcolor="#FFFFFF">
              <tr>
                <th width="465" height="196" scope="col"><table width="339" height="200" align="center" cellpadding="1" cellspacing="1" bordercolor="#FFFFFF" bgcolor="#FFFFFF">
                  <tr>
                    <td width="110" align="left">รหัสผู้ดูแลระบบ</td>
                    <td width="137" bordercolor="#FFFFFF" bgcolor="#FFFFFF"><div align="left">: <span class="style4">
                      <?=$objResult["admin_id"];?>
                      </span></div></td>
                    <td width="80" bordercolor="#FFFFFF" bgcolor="#FFFFFF">&nbsp;</td>
                  </tr>
                  <tr>
                    <td align="left">คำนำหน้านาม</td>
                    <td colspan="2" bordercolor="#FFFFFF" bgcolor="#FFFFFF"><div align="left">:
                      <label for="select"></label>
                      <select name="admin_title" id="admin_title">
                        <option value="0">โปรดเลือก</option>
                        <option value="รศ." <?php if($objResult["admin_title"] == 'รศ.'){echo"selected";}?>>รศ.</option>
                        <option value="ผศ." <?php if($objResult["admin_title"] == 'ผศ.'){echo"selected";}?>>ผศ.</option>
                        <option value="ผศ.ดร." <?php if($objResult["admin_title"] == 'ผศ.ดร.'){echo"selected";}?>>ผศ.ดร.</option>
                        <option value="นาย" <?php if($objResult["admin_title"] == 'นาย'){echo"selected";}?>>นาย</option>
                        <option value="นาง" <?php if($objResult["admin_title"] == 'นาง'){echo"selected";}?>>นาง</option>
                        <option value="นางสาว" <?php if($objResult["admin_title"] == 'นางสาว'){echo"selected";}?>>นางสาว</option>
                      </select>
                    </div></td>
                  </tr>
                  <tr>
                    <td align="left">ชื่อ</td>
                    <td colspan="2" bordercolor="#FFFFFF" bgcolor="#FFFFFF"><div align="left">:
                      <input name="admin_name" type="text" id="admin_name" value="<?=$objResult["admin_name"];?>" />
                    </div></td>
                  </tr>
                  <tr>
                    <td align="left" class="style5 style6">นามสกุล</td>
                    <td colspan="2" bordercolor="#FFFFFF" bgcolor="#FFFFFF"><div align="left">:
                      <input name="admin_sname" type="text" id="admin_sname" value="<?=$objResult["admin_sname"];?>" />
                    </div></td>
                  </tr>
                  <tr>
                    <td div="div" align="left">สถานะ</td>
                    <td colspan="2" bordercolor="#FFFFFF" bgcolor="#FFFFFF"><div align="left">:
                      <?=$objResult["sta_THname"];?>
                      </div></td>
                  </tr>
                  <tr>
                    <td colspan="3" bordercolor="#FFFFFF" bgcolor="#FFFFFF"><div align="center">
                      <input type="submit" name="Submit" value="แก้ไขข้อมูล" />
                      &nbsp;&nbsp;
                      <input type="reset" name="clear" value="เคลียร์" />
                    </div></td>
                  </tr>
                  <br />
                </table></th>
              </tr>
            </table>
            <?	}mysql_close($objConnect);?>
            </form>
          </div>