Displaying GEONExT constructions
From JSXGraph Wiki
Loading a GEONExT construction from a file
Here, we load the content of the GEONExT file "pythagoras.gxt" into JSXGraph, i.e. into the division with the id "box".
<div id="box" class="jxgbox" style="width:500px; height:500px;"></div>
<script type="text/javascript">
var brd = JXG.JSXGraph.loadBoardFromFile('box', 'pythagoras.gxt', 'Geonext');
</script>