SKI v8

<!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>
    <script>

        function Izracunaj(){
            var x=document.getElementById("jed").value;
        var y=document.getElementById("dva").value;
        var z=document.getElementById("tri").value;
            var prvi=x*100+y*10+z;
            var drugi=x*100+y*10+z;
            var treci=x*100+y*10+z;
            var cetvrti=x*100+y*10+z;
            var peti=x*100+y*10+z;
            var sesti=x*100+y*10+z;
            var suma=prvi+drugi+treci+cetvrti+peti+sesti;

            document.getElementById("paragraf").innerHTML+="" + prvi + "+" + drugi + "+" + treci + "+" + cetvrti  + "+" + peti + "+" + sesti + "=" +suma;
        }
    </script>
</head>
<body>
    a:<input type="number" id="jed">
    b:<input type="number" id="dva">
    c:<input type="number" id="tri">
    <br>
    <p id="paragraf"></p>
    <br>
    <button onclick="Izracunaj()">Suma permutacija</button>
</body>
</html>

------------------------------------------------------

<!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>
    <script>
        function promena(obj){
            document.body.style.backgroundColor=obj.value;
        }
        function pocetna(){
            document.getElementById("lista")
            promena(x);
        }
    </script>
</head>
<body onload="pocetna()">
    <p>Izaberi boju</p>
    <select name="lista" id="lista" onchange="promena(this)">
        <option value="null">Izaberite</option>
        <option value="red">Crvena</option>
        <option value="green">Zelena</option>
        <option value="blue">Plava</option>
        <option value="yellow">Zuta</option>
    </select>
</body>
</html>

--------------------------------

<!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>

    <style>
        img{
            display: block;
            width: 200px;
            margin: 10px;
        }

        #desno{
            width: 500px;
            border: 6px solid red;

        }

        div{
            display: inline-block;
            width: 300px;
            vertical-align: top;
        }
    </style>
    <script>
        function promeni(obj){
            document.getElementById("desno").src=obj.src;
        }
    </script>
</head>
<body>
    <div>
        <img src="../img/bec.jpg" alt="" onclick="promeni(this)">
        <img src="../img/cirih.jpg" alt="" onclick="promeni(this)">
        <img src="../img/pariz.jpg" alt="" onclick="promeni(this)">
    </div>
    <div>
        <img src="../img/bec.jpg" alt="" id="desno">
    </div>
</body>
</html>

-----------------------------

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Primer</title>
    <!-- <script>
        function ispis(){
            document.write("<p>Paragraf iz JavaScript-a.</p>");
        }
    </script> -->


    <!-- <script>
        function izracunaj(){
            var x=document.getElementById("broj").value;
            var faktorijel=1;
            for(var i=x; i>0; i--){
                faktorijel+=faktorijel*(i-1);
            }
            document.getElementById("rezultat").innerHTML="Faktorijel broja " + x + " je: " + faktorijel;
        }
    </script> -->
    <style>
        button{
            margin: 5px;
            width: 40px;
        }
    </style>
    <script>

        var niz=new Array("Januar", "Februar", "Mart", "April", "Maj", "Jun", "Jul", "Avgust", "Septembar", "Oktorbar", "Novembar", "Decembar")
        function kreiraj(){
            var brojac=1;
            for(var i=0; i<3; i++){
                for(var j=0; j<4; j++){
                    document.getElementById("elementi").innerHTML+="<button onclick='prikaziMesec(this)'>" + brojac +"</button>";
                    brojac++;
                }
                document.getElementById("elementi").innerHTML+="<br>";
            }
        }
        function prikaziMesec(obj){
            var n=obj.innerHTML;
            var mesec=niz[n-1];
            alert(mesec);
        }

    </script>

</head>
<body onload="kreiraj()">

    <div id="elementi"></div>
    <!-- <p>Paragraf</p>


    <button onclick="ispis()">Dugme</button> -->


    <!-- <input type="text" name="broj" id="broj">
    <button name="faktorijel" id="faktorijel" onclick="izracunaj()">Izracunaj</button>
    <p id="rezultat"></p> -->
</body>
</html>