connect disconnected graphs

by migerh

HTML

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

CSS

#jxgbox {
    width: 700px;
    height: 700px;
}

JavaScript

var board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-10, 10, 10, -10], axis: false, grid: false});

board.create('functiongraph', [
    function (x) {
        if (x < -1) {
            return -1;
        } else if (x > 1) {
            return 1;
        }
    }], {doAdvancedPlot: false});