reverted example... again..

examples/network/01_basic_usage.html

@@ -22,8 +22,8 @@
 <script type="text/javascript">
   // create an array with nodes
   var nodes = [
-    {id: 1, label: 'Node 1', group: 'mygroup1'},
-    {id: 2, label: 'Node 2', group: 'mygroup1'},
+    {id: 1, label: 'Node 1'},
+    {id: 2, label: 'Node 2'},
     {id: 3, label: 'Node 3'},
     {id: 4, label: 'Node 4'},
     {id: 5, label: 'Node 5'}
@@ -43,27 +43,9 @@
     nodes: nodes,
     edges: edges
   };
-  var options = {
-    width: '400px',
-    height: '400px',
-    hover: true,
-    groups: {
-      mygroup1: {
-        color: {
-          hover: {
-            background: 'red',
-            border: 'red'
-          },
-          highlight: 'green'
-        },
-        shape: 'box'
-      }
-    }
-
-  };
+  var options = {};
   var network = new vis.Network(container, data, options);
 </script>
 
 </body>
-
 </html>