creates GanttChart on page. Call this method after all initialization is done.
<div style="width:950px;height:620px;position:absolute" id="GanttDiv"></div> <script> var gantt = new GanttChart(); gantt.setImagePath("imgs/"); gantt.setEditable(true); //... gantt.addProject(project_1); //... gantt.create("GanttDiv"); </script>