Salinan kode adalah sebagai berikut:
<Html>
<head>
<type skrip = "Teks/JavaScript">
function moveNext (objek, indeks) {
if (object.value.length == 4) {
Document.Forms [0] .Elements [index+1] .focus ();
}
}
function showResult () {
var f = document.forms [0];
var result = "";
untuk (var i = 0; i <4; i ++) {
hasil+= f.elements [i] .value;
}
waspada (hasil);
}
</script>
</head>
<body onload = "document.forms [0] .eelements [0] .focus ();">
<sorm>
<input type = "text" size = "3" maxlength = "4" onkeyup = "moveNext (this, 0);">
<input type = "text" size = "3" maxlength = "4" onkeyup = "moveNext (this, 1);">>
<input type = "text" size = "3" maxlength = "4" onkeyup = "moveNext (this, 2);">>
<input type = "text" size = "3" maxlength = "4" onkeyup = "moveNext (this, 3);">
<input type = "Tombol" value = "show" onClick = "showResult ();">
</form>
</body>
</html>
Kodenya sangat sederhana dan fungsinya sangat praktis. Teman dapat menggunakannya dalam proyek mereka sendiri setelah kecantikan. Bukankah itu keren?