ay with nodes
  var nodes = [
    {id: 1, label: 'Node 1'},
    {id: 2, label: 'Node 2'},
    {id: 3, label: 'Node 3:\nLeft-Aligned', font: {'face': 'Monospace', align: 'left'}},
    {id: 4, label: 'Node 4'},
    {id: 5, label: 'Node 5\nLeft-Aligned box', shape: 'box',
     font: {'face': 'Monospace', align: 'left'}}
  ];

  // create an array with edges
  var edges = [
    {from: 1, to: 2, label: 'middle',     font: {align: 'middle'}},
    {from: 1, to: 3, label: 'top',        font: {align: 'top'}},
    {f