jQuery datepicker modal

by Joe

HTML

<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.css">
<input type="text" id="datepicker">
<script type="text/javascript" src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script src="https://ajax.aspnetcdn.com/ajax/jquery.validate/1.19.0/jquery.validate.js"></script>
<!-- <div  style="font: 80% 'Trebuchet MS', sans-serif;"></div> -->
<!-- The Modal -->
<div id="myModal" class="modal">

  <!-- Modal content -->
  <div class="modal-content">
    <span class="close">&times;</span>
    <p id="body">Some text in the Modal..</p>
    
  </div>

</div>

CSS

/* #nav {
  font-family: 'MedioRegular', "Palatino Linotype", "Book Antiqua", Palatino, serif;
  font-size: 15px;
  text-transform: uppercase;
  margin:10px 0 0 10px;
  padding:0;
  list-style:none;
  line-height: 25px;
  }    

#nav li {
  float:left;
  display:block;
  width:167px;
  position:relative;
  z-index:500;
  margin:0 1px;
  }

#nav li a {
  display:block;
  padding:0 0 0 20px;
  height:25px;
  text-decoration:none;
  color:#fff;
    background: #111;
  text-align:left;
  }    

#nav li a:hover {
  color:#fff;
    background: #111;
  }

#nav a.selected {
  color:#fff;
    background: #111;
  }

#nav ul {
  position:absolute;
  left:0;
  display:none;
  margin:0 0 0 -1px;
  padding:0;
  list-style:none;

  }

#nav ul li {
  width:165px;
  float:left;
  border-left:1px solid #111;
  border-right:1px solid #111;
  }

#nav ul li.underline {
  border-bottom:1px solid #111;
  }

#nav ul a {
  display:block;  
  height:25px;
  padding:0 0 0 23px;
  color:#111;
  background:url(../images/spacer.gif) repeat;
  }

#nav ul a:hover {
  text-decoration:none;    
  } */

/* The Modal (background) */
.modal {
  display: none;
  /* Hidden by default */
  position: fixed;
  /* Stay in place */
  z-index: 1;
  /* Sit on top */
  left: 0;
  top: 0;
  width: 100%;
  /* Full width */
  height: 100%;
  /* Full height */
  overflow: auto;
  /* Enable scroll if needed */
  background-color: rgb(0, 0, 0);
  /* Fallback color */
  background-color: rgba(0, 0, 0, 0.4);
  /* Black w/ opacity */
}

/* Modal Content/Box */
.modal-content {
  background-color: #fefefe;
  margin: 15% auto;
  /* 15% from the top and centered */
  padding: 20px;
  border: 1px solid #888;
  width: 80%;
  /* Could be more or less, depending on screen size */
}

/* The Close Button */
.close {
  color: #aaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: black;
  text-decoration: none;
  cursor: pointer;
}

JavaScript

$("#datepicker").datepicker();

 $("#datepicker").change(function() {
   var date = $(this).val();
   if (isFutureDate(date))
     $("#body").html("You have selected future date:" + date);
   else
     $("#body").html("You have selected past date:" + date);
   modal.style.display = "block";
 });

 function isFutureDate(idate) {
   var today = new Date().getTime();
   //idate = idate.split("/");
   debugger;
   idate = new Date(idate).getTime();
   console.log(idate);
   console.log(today);
   return (today - idate) < 0 ? true : false;
 }
 // Get the modal
 var modal = document.getElementById("myModal");

 // Get the <span> element that closes the modal
 var span = document.getElementsByClassName("close")[0];



 // When the user clicks on <span> (x), close the modal
 span.onclick = function() {
   modal.style.display = "none";
 }

 // When the user clicks anywhere outside of the modal, close it
 window.onclick = function(event) {
   if (event.target == modal) {
     modal.style.display = "none";
   }
 }