$('.navbar-text').click(function (e) {
  sigmaInstance.graph.clear();
  if ($.value === "PEOPLE") {
    $.get('/networks/projects/graph/').success(drawGraph(data));
    $.value = "PROJECTS";
  } else {
    $.get('/networks/graph/').success(drawGraph(data));
    $.value = "PEOPLE"
  }
});