Untitled

<body>
<p id="kort"></p>
Kort kvar = <p id="kort2"></p><br>

<input type="button" value="Reset" onClick="document.location.reload(true)">
<button type="button" onClick=(next_card())>Nästa kort!</button>
<button type="button" onClick=(show_card())>Visa kort</button>

<br>

<script>

var myArray = [2, 3, 4, 5, 6, 7, 8, 9, 10, "Knekt", "Dam", "Kung", "Ess"];
        myArray.sort(function() {return 0.5 - Math.random()});
        document.getElementById("kort").innerHTML = myArray[0];
        document.getElementById("kort2").innerHTML = myArray.length;

function next_card()
        {
            myArray.shift();
            document.getElementById("kort").innerHTML = myArray[0];
            document.getElementById("kort2").innerHTML = myArray.length;

        }
function show_card()
        {
            window.alert(myArray.length);
        }
</script>

</body>