<!--
add the following style
<style>
    html, body {
        width: 100%;
        height: 100%;
        margin: 0px;
        padding: 0px;
        overflow: hidden;
    }
</style>
-->
 
<input type="button" onclick="openLayout();" value="Open Fullscreen Layout Demo">
<script>
// init layout;
// var dhxLayout = new dhtmlXLayoutObject(document.body, "3L");
function openLayout() {
    window.open("inc/fullscreen_inner.html");
}</script>