Lista obiektów w galerii:

    {id: 0, alt: "Mak", filename: "obraz1.jpg", category:1, downloads: 35},
    {id: 1, alt:"Bukiet", filename: "obraz2.jpg", category: 1, downloads: 43},
    {id: 2, alt:"Dalmatyńczyk", filename: "obraz3.jpg", category:2, downloads: 2},
    {id: 3, alt:"Świnka morska", filename: "obraz4.jpg", category:2, downloads: 53},
    {id: 4, alt:"Rotwailer", filename: "obraz5.jpg", category:2, downloads: 43},
    {id: 5, alt:"Audi", filename: "obraz6.jpg", category:3, downloads: 11},
    {id: 6, alt:"kotki", filename: "obraz7.jpg", category:2, downloads: 22},
    {id: 7, alt:"Róża", filename: "obraz8.jpg", category:1, downloads: 33},
    {id: 8, alt:"Świnka morska", filename: "obraz9.jpg", category:2, downloads: 123},
    {id: 9, alt:"Foksterier", filename: "obraz10.jpg", category:2, downloads: 22},
    {id: 10, alt:"Szczeniak", filename: "obraz11.jpg", category:2, downloads: 12},
    {id: 11, alt:"Garbus", filename: "obraz12.jpg", category:3, downloads: 321}