ReportWizard.getNextStep Method
        
 Gets the name of the next step based on the current wizard state and the current step.
 
         
        Parameters
        
            - currentStep
            
 
            - 
                
Type: String - May be null
The name of the current step, or null if querying for the first step to begin with. 
        
        Return Value
        
Type: String
        
The name of the next step, or null if there is no next step.