Untitled

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="style.css">
    <script src="jquery-3.3.1.js"></script>
    <script>
    $(document).ready(function(){


        var b=$("#back");
        var n=$("#next");

        var g1 = $("#g1");
        var g2 = $("#g2");
        var g3 = $("#g3");
        var g4 = $("#g4");
        var g5 = $("#g5");
        var g6 = $("#g6");

        var foto = $("#foto");


        g2.click(function(){
            foto.src="galeria/i02.jpg";

        });

    }) //koniec kodu


    </script>
</head>
<body>
<div class="ramka">
<div class="mini">

    <img id="g1" src="galeria/i01.jpg"/>
    <img id="g2" src="galeria/i02.jpg"/>
    <img id="g3" src="galeria/i03.jpg"/>
    <img id="g4" src="galeria/i04.jpg"/>
    <img id="g5" src="galeria/i05.jpg"/>
    <img id="g6" src="galeria/i06.jpg"/>

</div>
<div class="back" id="back">back</div>
<div class="maxi">
    <img src="galeria/i01.jpg" id="foto">
</div>
<div class="next" id="next">next</div>
</div>

</body>
</html>