ype="text/css"/>


    <script type="text/javascript">
        var nodes = null;
        var edges = null;
        var network = null;

        function destroy() {
            if (network !== null) {
                network.destroy();
                network = null;
            }
        }

        function draw() {
            destroy();
            // randomly create some nodes and edges
            var nodeCount = document.getElementById('nodeCount').value;
            var data = getScaleFreeNetwork(nod