Window Opened in a New Tab

<html>
<head></head>
<body>
    <input type="button" value="Click Me" onclick="newTab()" />
</body>
<script type="text/javascript">
    function newTab() {
        var win = window.open('popupwindow.htm');   // WITHOUT ITS FEATURES.
        win.focus();
    }
</script>
</html>