deactivate infobox

example on how to deactivate the infobox

HTML

<script src="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraphcore.js"></script>
<link rel="stylesheet" href="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraph.css">
<div id="jxgbox" style="width:500px; height:500px;"></div>

JavaScript

// deactivate the infobox for all points
JXG.Options.point.showInfobox = false;

var board = JXG.JSXGraph.initBoard('jxgbox', {
    axis: true
});

var p = board.create('point', [2,1]);

// (De-)activate the infobox for a single point
var q = board.create('point', [1, 1], {showInfobox: true,infobox:'aaaaaaaaaaaa'});