Asp Dot Net Store Front Category Menus

Hello Please open this link: [login to view URL] On the TOP NAV if you see that in the menu CATEGORIES and DEPARTMENTS are displaying and they are pulling from database I want that the categories should display one by one like this Category1 -- > Category2 -- > Category 3 -- > Category 4 Sub nav1 -- > Sub nav1 -- > Sub nav1 -- > Sub nav1 subnav2 -- > sub nav2 -- > Sub nav2 -- > Sub nav2 So they should be pulling from database so if someone added sub category from backend then it should display under parent category.. Can any one please help regarding that Looking forward to hearing from you Many Thanks Saqib