在Bootstrap模式中的图像中添加maphilight

I have a 7446x1800 image that I need to map. I used maphilight jQuery plugin to achieve this. I was able to make it work(see here ) but what I want to achieve is to make it work inside a Bootstrap modal. I'm guessing it has something to do with z-index but I can't make it work.

The process is, when the user clicks on the smaller version of the image, a bootstrap modal will pop up where he/she could view the whole image and choose a 'lot' to make a reservation. Different colors are used to indicate whether a lot is already taken, reserved, or still available.

Here's my whole code:

<style type="text/css">
  .modal.modal-wide .modal-dialog {
    width: 90%;
  }
  .modal-wide .modal-body {
    overflow-y: auto;
  }
  #tallModal .modal-body p { margin-bottom: 900px }
</style>

<div class="row">
<div class="zoomTarget" data-debug="true">
    <img src ="../../assets/images/uploads/map-1.png" alt="map 1" width="755px" height="200px" data-toggle="modal" data-target="#showmapModal-1">
    <div class="modal modal-wide fade" id="showmapModal-1" tabindex="-1" role="dialog" aria-labelledby="showmapModal-1">
    <div class="modal-dialog" role="document">
           <div class="modal-content">
                  <div class="modal-header">
                         <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
                         <h4 class="modal-title" id="showmapModal-1">Reserve Lot</h4>
                  </div>
                  <div class="modal-body">
                         <div id="veg_demo">
                            <img class="map" id="map-<?php echo $_GET['map']; ?>" src="../../assets/images/uploads/map-1.png" usemap="#map-1" >
                            <div style="clear:both; height:8px;"></div>
                            <div id="selections" style="clear:both;"></div>
                        </div>
                        <map pid="map-1" name="map-1">
                            <?php
                                $plot_map = SelectAll('pmp_lot_map');
                                if($plot_map){
                                    $counter = 1;
                                    if(mysqli_num_rows($plot_map) > 0) {
                                        while($row = mysqli_fetch_assoc($plot_map)) {
                                                $lot_map_uuid = $row['uuid'];
                                                $block_no = $row['block_no'];
                                                $lot_no = $row['lot_no'];
                                                $coordinates = $row['coords'];
                                                $lot_status = $row['status'];
                                                if($lot_status == 'available') {
                                                    $fillColor = '87D37C';
                                                    $message = "This lot is available. Do you really want to reserve this Block # ".$block_no.", Lot # ".$lot_no.".";
                                                } else if($lot_status == 'reserved') {
                                                    $fillColor = 'F4D03F';
                                                    $message = "This lot is already reserved.";
                                                } else if($lot_status == 'taken') {
                                                    $fillColor = '96281B';
                                                    $message = "This lot is not available.";
                                                }
                            ?>
                            <area data-toggle="modal" data-target="#mapModal_<?php echo $counter; ?>" data-maphilight='{"strokeColor":"000000","strokeWidth":3,"fillColor":"<?php echo $fillColor; ?>","fillOpacity":1}' href="#" shape="poly" coords="<?php echo $coordinates; ?>" data-alt="Block <?php echo $block_no; ?> Lot <?php echo $lost_no; ?>" data-title="Block <?php echo $block_no; ?> Lot <?php echo $lot_no; ?>">
                            <div class="modal fade" id="mapModal_<?php echo $counter; ?>" tabindex="-1" role="dialog" aria-labelledby="mapModalLabel-<?php echo $counter; ?>">
                                <div class="modal-dialog" role="document">
                                       <div class="modal-content">
                                              <div class="modal-header">
                                                     <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
                                                     <h4 class="modal-title" id="mapModalLabel-<?php echo $counter; ?>">Reserve Lot</h4>
                                              </div>
                                              <div class="modal-body">
                                                     <p style="text-indent:0;">
                                                        <?php echo $message; ?>
                                                    </p>

                                              </div>
                                              <div class="modal-footer">
                                                     <?php if($lot_status == 'available') {?><button type="button" class="btn btn-success" onclick="saveMapModal('<?php echo $lot_map_uuid; ?>','mapModal_<?php echo $counter; ?>','<?php echo $uuid; ?>');">Continue</button><?php } ?>
                                                     <?php if($lot_status == 'available') {?><button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button><?php } ?>
                                                     <?php if($lot_status != 'available') {?><button type="button" class="btn btn-default" data-dismiss="modal">Ok</button><?php } ?>
                                              </div>
                                       </div>
                                </div>
                             </div>
                            <?php
                                            $counter++;
                                        }
                                    }
                                }
                            ?>
                        </map>

                  </div>
                  <div class="modal-footer"><button type="button" class="btn btn-default" data-dismiss="modal">Close</button></div>
           </div>
    </div>
 </div>
</div>

<script type="text/javascript">
$(document).ready(function () {
  $('.map').maphilight();
});
$(".modal-wide").on("show.bs.modal", function() {
    var height = $(window).height() - 100;
    $(this).find(".modal-body").css("max-height", height);
});
</script>

Or if it's not possible, are there any other ways to achieve it?

Any help is highly appreciated.

P.S. I can't tag "maphilight" plugin because it says it needs to have 1500 reputation.

style="position:absolute;"

is the culprit. I removed it when I use the maphilight in modal and everything seems to work!