I have Open Modal button and when you click button, my modal has been creating with jquery, everything is okey so far but I guess my method is wrong because I noticed a bug is after open the modal if you close and if you open again you will see it has been creating 2 times,3 times,4 times....
so where is my mistake ? and another question is how can I send my parameters default value ?
function generateModal(modalTitle, modalWidth, modalHeight, iframeUrl, iframeWidth, iframeHeight) {
  var html =
    '<div class="modal fade mapModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel"><div class="modal-dialog" role="document" style="width:' + modalWidth + ';height:' + modalHeight + '"><div class="modal-content"><div class="modal-header"><button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>';
  html = html + '<h4 class="modal-title" id="myModalLabel">' + modalTitle + "</h4></div>";
  html = html + '<div class="modal-body"><iframe src="' + iframeUrl + '" width="' + iframeWidth + '" height="' + iframeHeight + '" allowfullscreen></iframe></div>';
  html = html + "</div></div></div>";
  $(document.body).append(html);
  $(".mapModal").modal();
}
$(document).on("click", ".open-modal", function() {
  generateModal("Modal deneme ", "60%", "500px", "https://www.google.com/maps/embed?pb=!1m10!1m8!1m3!1d12047.436573933934!2d29.098413750000002!3d40.984565100000005!3m2!1i1024!2i768!4f13.1!5e0!3m2!1str!2str!4v1463140023736", "100%", "auto");
});.open-modal {
  border: 3px solid #ccc;
  display: inline-block;
  padding: 12px;
  font-size: 14px;
  margin: 100px;
  cursor: pointer;
  box-shadow: 0px 0px 10px #ccc;
}
.open-modal:hover {
  background: #050505;
  color: #fff;
  border-color: #000;
}
.modal-dialog iframe {
  width: 100%;
}<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<p class="open-modal" data-toggle="modal" data-target=".mapModal" aria-expanded="false">Open Modal</p>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script> 
     
     
     
    