jQuery BlockUI Plugin Demo

1.Login Form

$(document).ready(function() {
    $('#demo1').click(function() {
        $.blockUI({ message: $('#loginForm') }); 

        setTimeout($.unblockUI, 2000);
    });
}); 

2.iPhoto (ish)

$(document).ready(function() {
    $('#demo2').click(function() {
        $.blockUI({ css: {
            border: 'none',
            padding: '15px',
            backgroundColor: '#000',
            '-webkit-border-radius': '10px',
            '-moz-border-radius': '10px',
            opacity: .5,
            color: '#fff'
        } }); 

        setTimeout($.unblockUI, 2000);
    });
}); 

3.Blue Overlay

$(document).ready(function() {
    $('#demo3').click(function() {
        $.blockUI({ overlayCSS: { backgroundColor: '#00f' } }); 

        setTimeout($.unblockUI, 2000);
    });
}); 

4.Tall Content

$(document).ready(function() {
    $('#demo4').click(function() {
        $.blockUI({
            message: $('#tallContent'),
            css: { top: '20%' }
        }); 

        setTimeout($.unblockUI, 2000);
    });
}); 

5.Image Box

$(document).ready(function() {
    $('#demo5').click(function() {
        $.blockUI({
            message: $('#displayBox'),
            css: {
                top:  ($(window).height() - 400) /2 + 'px',
                left: ($(window).width() - 400) /2 + 'px',
                width: '400px'
            }
        }); 

        setTimeout($.unblockUI, 2000);
    });
}); 

6.Non-centered message

$(document).ready(function() {
    $('#demo6').click(function() {
        $.blockUI({
            centerY: 0,
            css: { top: '10px', left: '', right: '10px' }
        }); 

        setTimeout($.unblockUI, 2000);
    });
}); 

7.Blocking without a message (pass null as message)

$(document).ready(function() {
    $('#demo7').click(function() {
        $.blockUI({ message: null }); 

        setTimeout($.unblockUI, 2000);
    });
}); 

8.onUnblock callback (useful when using fadeOut option as it is invoked when all the blocking elements have been removed)

$(document).ready(function() {
    $('#demo8').click(function() {
        $.blockUI(); 

        setTimeout(function() {
            $.unblockUI({
                onUnblock: function(){ alert('onUnblock'); }
            });
        }, 2000);
    });
}); 

9.Click overlay to unblock (This demo will not automatically unblock, you must click the overlay.)

$(document).ready(function() {
    $('#demo9').click(function() {
        $.blockUI();
        $('.blockOverlay').attr('title','Click to unblock').click($.unblockUI);
    });
}); 

10.Auto-Unblock Sets a timer to unblock after a specified timeout.

$(document).ready(function() {
    $('#demo10').click(function() {
        $.blockUI({
            message: '<h1>Auto-Unblock!</h1>',
            timeout: 2000
        });
    });
}); 

11.Growl (the hard way)

$(document).ready(function() {
    $('#demo11').click(function() {
        $.blockUI({
            message: $('div.growlUI'),
            fadeIn: 700,
            fadeOut: 700,
            timeout: 2000,
            showOverlay: false,
            centerY: false,
            css: {
                width: '350px',
                top: '10px',
                left: '',
                right: '10px',
                border: 'none',
                padding: '5px',
                backgroundColor: '#000',
                '-webkit-border-radius': '10px',
                '-moz-border-radius': '10px',
                opacity: .6,
                color: '#fff'
            }
        });
    });
});

12.Growl (the easy way)

$(document).ready(function() {
   $('#demo12').click(function() {
       $.growlUI('Growl Notification', 'Have a nice day!');
   });
}); 

The two growl examples above also make use of the following external CSS:

div.growlUI { background: url(check48.png) no-repeat 10px 10px }
div.growlUI h1, div.growlUI h2 {
    color: white; padding: 5px 5px 5px 75px; text-align: left
}

Note: For a more full-featured "growl" implementation, check out the excellent jGrowl plugin by Stan Lemon.

13.jQuery UI Theme. Use jQuery UI themes to style the messaege

$(document).ready(function() {
    $('#demo13').click(function() {
        $.blockUI({
            theme:     true,
            title:    'This is your title',
            message:  '<p>This is your message.</p>',
            timeout:   2000
        });
    });
}); 

14.onBlock callback

$(document).ready(function() {
    $('#demo14').click(function() {
        $.blockUI({
            fadeIn: 1000,
            timeout:   2000,
            onBlock: function() {
                alert('Page is now blocked; fadeIn complete');
            }
        });
    });
}); 

15.onOverlayClick callback

//Click overlay to unblock.
$(document).ready(function() {
    $('#demo15').click(function() {
        $.blockUI({
            onOverlayClick: $.unblockUI
        });
    });
}); 

参考：http://malsup.com/jquery/block/#overview