Untitled

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Subscribe Form</title>
	<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet">


</head>
<body>
	<div class="container">
		<button class="btn btn-primary" data-toggle="modal" data-target="#modal">Open Window</button>
		<div class="modal fade" id="modal">
			<div class="modal-dialog">
				<div class="modal-content">
					<div class="modal-header">
					<button class="close" type="button" data-dismiss="modal">
						<i class="glyphicon glyphicon-remove"></i>
					</button>
						<h2>Form</h2>
					</div>
					<div class="modal-body">
						<p>Email: <input type="email" name="email"></p>
					</div>
					<div class="modal-footer">
						<a class="btn btn-danger" data-dismiss="modal">Close</a>
					</div>
				</div>
			</div>
		</div>
	</div>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.js"></script>
	<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>

<script>
$(function() {
	$(window).load(function(){
		setTimeout(function(){
		$("#modal").show();
		}, 1000);
	})
});
</script>

</body>
</html>