var praktijk    = [{'caption': 'Administratie', 'url': '../fotoos/administratie.jpg'},
                   {'caption': 'Receptie', 'url': '../fotoos/receptie.jpg'},
                   {'caption': 'Receptie', 'url': '../fotoos/receptie2.jpg'},
                   {'caption': 'Receptie', 'url': '../fotoos/receptie3.jpg'},
                   {'caption': 'Behandelkamer', 'url': '../fotoos/behandelkamer.jpg'},
                   {'caption': 'Behandelkamer', 'url': '../fotoos/behandelkamer2.jpg'},
                   {'caption': 'Behandelkamer', 'url': '../fotoos/behandelkamer3.jpg'},
                   {'caption': 'Fitnesszaal', 'url': '../fotoos/zaal1.jpg'},
                   {'caption': 'Fitnesszaal', 'url': '../fotoos/zaal2.jpg'},
                   {'caption': 'Fitnesszaal', 'url': '../fotoos/zaal3.jpg'},
                   {'caption': 'Fitnesszaal', 'url': '../fotoos/zaal4.jpg'},
                   {'caption': 'Fitnesszaal', 'url': '../fotoos/zaal5.jpg'},
                   {'caption': 'Oefeningen', 'url': '../fotoos/oefening1.jpg'},
                   {'caption': 'Oefeningen', 'url': '../fotoos/oefening2.jpg'},
                   {'caption': 'Oefeningen', 'url': '../fotoos/oefening3.jpg'},
                   {'caption': 'Oefeningen', 'url': '../fotoos/oefening4.jpg'},
                   {'caption': 'Oefeningen', 'url': '../fotoos/oefening5.jpg'}];