Tasks are broken down in Gantt chart lines.
Hovering the mouse over them reveals more details about the task.
Here are some key features of "dhtmlxGantt":
· Built-in edit menu, plus custom dhtmlxMenu support
· Extended properties pop-up
· Optional tree view
· Editable chart
· Full control with JavaScript API
· Multi-browser/multi-platform support
· Loading from XML
· Serialization to XML
· Movable/resizable activities
· Customizable task subscription
· Percent-complete shadings
· Dependency arrows
· Fast and smooth rendering
· Built-in constraint checking
· Print-friendly mode
Requirements:
· JavaScript enabled on client side