Chart.addSeries Method
        
 Adds series to the chart.
 
         
        Parameters
        
            - series
            
 
            - 
                
Type: Object
ElementType: ChartSeries
A series or array of series 
            - insertIndex
            
 
            - 
                
Type: Number (Integer)
(optional) An index in the series array at which to insert the series. If not specified, the series will be added to the end.
Optional: True 
        
        Return Value
        
Type: Number (Integer)
The new number of series.