Menu.setActive Method
        
 When given a menu item, will de-activate all others as in-active and activate / refresh the menu item given.
 
         
        Parameters
        
            - menuItem
            
 
            - 
                
Type: MenuItem
The menu item to mark as active. 
            - isActive
            
 
            - 
                
Type: Boolean
True or undefined if this item is to be marked active; false otherwise.
Optional: True 
            - refresh
            
 
            - 
                
Type: Boolean
True if a refresh (re-draw) is required after the set; false otherwise.
Optional: True