<!DOCTYPE html>
<html>
<body>
<button onclick="openWin()">Open w3schools.com in a new window</button>
<button onclick="closeWin()">Close the new window (w3schools.com)</button>
<script>
var myWindow;
function openWin() {
myWindow = window.open("http://www.w3ii.com", "_blank", "width=500, height=500");
}
function closeWin() {
myWindow.close();
}
</script>
</body>
</html>