View source for Fullscreen mode

This feature maybe useful in classrooms: the teacher wants to show the whole class a JSXGraph construction from an eLearning platform like moodle. By clicking either on the fullscreen icon in the JSXGraph navigation bar or on the external fullscreen button, the consruction is shown fullscreen mode.
<jsxgraph width="500" height="500">
var board = JXG.JSXGraph.initBoard('jxgbox', {
        axis:true, 
        boundingbox:[-5, 5, 5, -5],
        showFullscreen: true
});

var plot = board.create('functiongraph', ["nthroot(x, 3)"], {withLabel: true, name:'nthroot(x,3)'});
</jsxgraph>
<html><button onClick="board.toFullscreen()">Fullscreen</button></html>

===The underlying JavaScript code===
<source lang="html5">
<script>
    var board = JXG.JSXGraph.initBoard('jxgbox', {
        axis:true, 
        boundingbox:[-5, 5, 5, -5],
        showFullscreen: true
    });
    var plot = board.create('functiongraph', ["nthroot(x, 3)"], {withLabel: true, name:'nthroot(x,3)'});
</script>
<button onClick="board.toFullscreen()">Fullscreen</button>
</source>

[[Category:Examples]]