<script type="text/javascript">
$('#upload').on('change',function(){
// output raw value of file input
$('#filename').html($(this).val().replace(/.*(\/|\\)/, ''));
// or, manipulate it further with regex etc.
var filename = $(this).val().replace(/.*(\/|\\)/, '');
// .. do your magic
$('#filename').html(filename);
});
</script>