whoishere.js

var fadeTime = 3500;
    var delayTime = 2500;
    $(document).ready(function() {
        $('.full-name').focus();
        $(document).keypress(function(e) {
            if(e.which == 13) {
                $('.button-go').trigger('click');
            }
        });
        $('.button-go').on('click', function() {
            var fullName = $('.full-name').val();
            $.getJSON('change.php',{
                fullName: fullName
            },function(data){
                if(data.result){
                    switch(data.opt){
                        case 'in':
                            $('.alert').show().html('<span>Check In Successful!</span>').removeClass('alert-info').addClass('alert-success').delay(delayTime).hide(0);
                            break;
                        case 'out':
                            $('.alert').show().html('<span>Check Out Successful!</span>').removeClass('alert-info').addClass('alert-success').delay(delayTime).hide(0);
                            break;
                    }
                    $('.full-name').val('');
                    $('.full-name').focus();
                }
                if(data.result==false){
                    $('.alert').show().html(data.message).removeClass('alert-success').addClass('alert-info').delay(delayTime).hide(0);
                }
            });
        });
    });