Automatically Move Cursor to Next Field When Textbox Full using javascript in asp.net

JavaScript-

 

<script type="text/javascript">

function movetoNext(current, nextFieldID) {

if (current.value.length >= current.maxLength) {

document.getElementById(nextFieldID).focus();

}

}

</script>


html-

<input type="text" id="txtFirst" size="4" onkeyup="movetoNext(this, 'txtSecond')" maxlength="10" />

<input type="text" id="txtSecond" size="4" onkeyup="movetoNext(this, 'txtThird')" maxlength="10" />

<input type="text" id="txtThird" size="5" maxlength="11" />