vezba

<!DOCTYPE html>
<html>
<head>
</head>
<body>
<p>Please input a number between 1 and 10:</p>
<input id="numb" type="text">
<button type="button" onclick="myFunction()">Submit</button>
<p id="demo"></p>
<script>
  function myFunction() {
    var x , text;
    x=document.getElementById("numb").value;
    if(isNaN(x) || x < 10 || x > 10)
    {
      text = "Input not valid";
    }
    else
      {
        text = "Input okey"
      }
    document.getElementById("demo").innerHTML=text;
  }

</script>
</body>
</html>