Untitled

<div class="container" style="margin-top: 50px;">
    <form method="POST" action="ReserveringMaken.php">
        <div class="row">
            <div class="col-sm-12" style="text-align: center;">
                <h2>Kies een stoel</h2>
            </div>
        </div>

        <div class="row">
            <div class="col-md-6">
                <h4>Kies een rij</h4>
                <select class="comboboxFilm" name="cbxRij">
                    <?php
                    if ($voorstelling_zaal == "N_%") {
                        echo "<html>
                                <option value='0'>1</option>
                                <option value='20'>2</option>
                                <option value='40'>3</option>
                                <option value='60'>4</option>
                                <option value='80'>5</option>
                                <option value='100'>6</option>
                                <option value='120'>7</option>
                                <option value='140'>8</option>
                                <option value='160'>9</option>
                                <option value='180'>10</option>
                                <option value='200'>11</option>
                                <option value='220'>12</option>
                                <option value='240'>13</option>
                                <option value='260'>14</option>
                                <option value='280'>15</option>
                                <option value='300'>16</option>
                                <option value='320'>17</option>
                                <option value='340'>18</option>
                                <option value='360'>19</option>
                                <option value='380'>20</option>
                            </html>";
                            } else//if($voorstelling_zaal = "B_%")
                            {
                                echo "<html>
                                        <option value='0'>1</option>
                                        <option value='20'>2</option>
                                        <option value='40'>3</option>
                                        <option value='60'>4</option>
                                        <option value='80'>5</option>
                                        <option value='100'>6</option>
                                        <option value='120'>7</option>
                                        <option value='140'>8</option>
                                        <option value='160'>9</option>
                                        <option value='180'>10</option>
                                        <option value='200'>11</option>
                                        <option value='220'>12</option>
                                        <option value='240'>13</option>
                                        <option value='260'>14</option>
                                        <option value='280'>15</option>
                                        <option value='300'>16</option>
                                        <option value='320'>17</option>
                                        <option value='340'>18</option>
                                        <option value='360'>19</option>
                                        <option value='380'>20</option>
                                        <option value='400'>21</option>
                                        <option value='420'>22</option>
                                        <option value='440'>23</option>
                                        <option value='460'>24</option>
                                        <option value='480'>25</option>
                                        <option value='500'>26</option>
                                        <option value='520'>27</option>
                                        <option value='540'>28</option>
                                        <option value='560'>29</option>
                                        <option value='580'>30</option>
                                    </html>";
                                    }
                        ?>
                    </select>
                </div>

                <div class="col-md-6">
                    <h4>Kies een stoel</h4>
                    <select class="comboboxFilm" name="cbxStoel">
                        <option value="1">1</option>
                        <option value="2">2</option>
                        <option value="3">3</option>
                        <option value="4">4</option>
                        <option value="5">5</option>
                        <option value="6">6</option>
                        <option value="7">7</option>
                        <option value="8">8</option>
                        <option value="9">9</option>
                        <option value="10">10</option>
                        <option value="11">11</option>
                        <option value="12">12</option>
                        <option value="13">13</option>
                        <option value="14">14</option>
                        <option value="15">15</option>
                        <option value="16">16</option>
                        <option value="17">17</option>
                        <option value="18">18</option>
                        <option value="19">19</option>
                        <option value="20">20</option>
                    </select>
                </div>
            </div>

            <div class="row">
                <div class="col-md-6"><br>
                    <input type="submit" name="btnReserveer" value="Reserveer nu!"/>
                </div>