NiklasHansen/ChildPage.html

## ChildPage.html
<!DOCTYPE html>
<html>
<head>
    <title>Child page</title>
	<meta charset="utf-8" />
</head>
<body>
    Return value: <input type="text" id="returnValue">
    <p>Click the button to close the browser window.</p>

    <button onclick="myFunction()">Try it</button>

<script>
    function myFunction() {
        var returnValue = document.getElementById("returnValue").value;
        opener.postMessage({ 'returnValue': returnValue }, "*");
        window.close();
    }
</script>

</body>
</html>

## Mainpage.html
<!DOCTYPE html>
<html>
<head>
    <title>Main page</title>
	<meta charset="utf-8" />
</head>
<body>

    <p>Click the button to open a new browser window.</p>
    <p>Returned: <span id="returnValue"></span></p>
    <button onclick="myFunction()">Try it</button>

    <script>
        function myCallback(ejendomsnummer) {
	        document.getElementById("myParagraf").innerHTML = ejendomsnummer;
        }

        function myFunction() {
            var myWindow = window.open("ChildPage.html", "Ejendomsidentifikation");
        }

        window.addEventListener("message", function (e) {
            var event = e;
            document.getElementById("returnValue").innerHTML = event.data.returnValue;
        }, false);
    </script>

</body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>Child page</title>
	<meta charset="utf-8" />
	</head>
	<body>
	Return value: <input type="text" id="returnValue">
	<p>Click the button to close the browser window.</p>

	<button onclick="myFunction()">Try it</button>

	<script>
	function myFunction() {
	var returnValue = document.getElementById("returnValue").value;
	opener.postMessage({ 'returnValue': returnValue }, "*");
	window.close();
	}
	</script>

	</body>
	</html>