key event magic
HTML
<div class="hide">
<div><input type="text" id="hiddentxt" size="10" value="" placeholder="Text"></div>
</div>JavaScript
$('#hiddentxt').on('keydown', function(event) {
console.log(event.which, $('input').val());
});
$('#hiddentxt').on('input', function(event) {
console.log(event.which, $('input').val());
$('input').val("");
});