jquery.artwl.thickbox.js 一个非常简单好用的jQuery弹出层插件

最终效果：

<!DOCTYPE html> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> 
<title>弹出层插件:jquery.artwl.thickbox.js</title> 
<script src="/js_lib/jQuery-1.7.1.js" type="text/javascript"></script> 
<script type="text/javascript"> 
/* File Created: 三月 1, 2012 Author:artwl */ 
;(function ($) { 
$.extend({ 
artwl_bind: function (options) { 
options=$.extend({ 
showbtnid:"", 
title:"", 
content:"" 
},options); 
var mask = '<div id="artwl_mask"></div>'; 
var boxcontain = '<div id="artwl_boxcontain">\ 
<a id="artwl_close" href="javascript:void(0);" title="Close"></a>\ 
<div id="artwl_showbox">\ 
<div id="artwl_title">\ 
<h2>\ 
Title</h2>\ 
</div>\ 
<div id="artwl_message">\ 
Content<br />\ 
</div>\ 
</div>\ 
</div>'; 
var cssCode = 'html, body, h1, h2, h3, h4, h5{margin: 0px;padding: 0px;}\ 
#artwl_mask{background-color: #000;position: absolute;top: 0px;left: 0px;width: 100%;height: 100%;opacity: 0.5;filter: alpha(opacity=50);display: none;}\ 
#artwl_boxcontain{margin: 0 auto;position: absolute;z-index: 2;line-height: 28px;display: none;}\ 
#artwl_showbox{padding: 10px;background: #FFF;border-radius: 5px;margin: 20px;min-width:300px;min-height:200px;}\ 
#artwl_title{position: relative;height: 27px;border-bottom: 1px solid #999;}\ 
#artwl_close{position: absolute;cursor: pointer;outline: none;top: 0;right: 0;z-index: 4;width: 42px;height: 42px;overflow: hidden;background-image: url(/upload/201203/20120301220903376.png);_background: none;}\ 
#artwl_message{padding: 10px 0px;overflow: hidden;line-height: 19px;}'; 
if ($("#artwl_mask").length == 0) { 
$("body").append(mask + boxcontain); 
$("head").append("<style type='text/css'>" + cssCode + "</style>"); 
if(options.title!=""){ 
$("#artwl_title").html(options.title); 
} 
if(options.content!=""){ 
$("#artwl_message").html(options.content); 
} 
} 
$("#"+options.showbtnid).click(function () { 
var height = $("#artwl_boxcontain").height(); 
var width = $("#artwl_boxcontain").width(); 
$("#artwl_mask").show(); 
$("#artwl_boxcontain").css("top", ($(window).height() - height) / 2).css("left", ($(window).width() - width) / 2).show(); 
if ($.browser.msie && $.browser.version.substr(0, 1) < 7) { 
width = $(window).width() > 600 ? 600 : $(window).width() - 40; 
$("#artwl_boxcontain").css("width", width + "px").css("top", ($(window).height() - height) / 2).css("left", ($(window).width() - width) / 2).show(); 
$("#artwl_mask").css("width", $(window).width() + "px").css("height", $(window).height() + "px").css("background", "#888"); 
$("#artwl_close").css("top", "30px").css("right", "30px").css("font-size", "20px").text("关闭"); 
} 
}); 
$("#artwl_close").click(function () { 
$("#artwl_mask").hide(); 
$("#artwl_boxcontain").hide(); 
}); 
}, 
artwl_close:function(options){ 
options=$.extend({ 
callback:null 
},options); 
$("#artwl_mask").hide(); 
$("#artwl_boxcontain").hide(); 
if(options.callback!=null){ 
options.callback(); 
} 
} 
}); 
})(jQuery); 
$(function () { 
$.artwl_bind({ showbtnid: "btn_show", title: "From Cnblogs Artwl", content: $("#Content").html() }); 
}); 
function test() { 
alert("Before close"); 
$.artwl_close({ callback: other }); 
} 
function other() { 
alert("After close"); 
} 
</script> 
</head> 
<body> 
<h3>弹出层插件jquery.artwl.thickbox.js(http://www.jb51.net)</h3> 
<input type="button" value="Click Me" id="btn_show" /> 
<span id="Content" style="display:none;"> 
<a href="http://www.jb51.net">Artwl</a><br /> 
<input type="button" onclick="test()" value="Test"/> 
</span> 
</body> 
</html> 

插件原理
　　所有弹出层的原理都差不多，就是用一个全屏半透明DIV做遮罩层，在这个遮罩层上再显示出一个层放要显示的内容，其他的就是CSS的运用了。
　　本插件为了使用简单，把JS跟CSS封装在了一个JS文件(插件)中，所以使用起来非常方便，做到了一行代码调用。
插件源代码
　　插件(jquery.artwl.thickbox.js)的源码如下：

复制代码代码如下:

/* File Created: 三月 1, 2012 Author:artwl blog:http://artwl.cnblogs.com */ 
;(function ($) { 
$.extend({ 
artwl_bind: function (options) { 
options=$.extend({ 
showbtnid:"", 
title:"", 
content:"" 
},options); 
var mask = '<div id="artwl_mask"></div>'; 
var boxcontain = '<div id="artwl_boxcontain">\ 
<a id="artwl_close" href="javascript:void(0);" title="Close"></a>\ 
<div id="artwl_showbox">\ 
<div id="artwl_title">\ 
<h2>\ 
Title</h2>\ 
</div>\ 
<div id="artwl_message">\ 
Content<br />\ 
</div>\ 
</div>\ 
</div>'; 
var cssCode = 'html, body, h1, h2, h3, h4, h5{margin: 0px;padding: 0px;}\ 
#artwl_mask{background-color: #000;position: absolute;top: 0px;left: 0px;width: 100%;height: 100%;opacity: 0.5;filter: alpha(opacity=50);display: none;}\ 
#artwl_boxcontain{margin: 0 auto;position: absolute;z-index: 2;line-height: 28px;display: none;}\ 
#artwl_showbox{padding: 10px;background: #FFF;border-radius: 5px;margin: 20px;min-width:300px;min-height:200px;}\ 
#artwl_title{position: relative;height: 27px;border-bottom: 1px solid #999;}\ 
#artwl_close{position: absolute;cursor: pointer;outline: none;top: 0;right: 0;z-index: 4;width: 42px;height: 42px;overflow: hidden;background-image: url(/Images/feedback-close.png);_background: none;}\ 
#artwl_message{padding: 10px 0px;overflow: hidden;line-height: 19px;}'; 
if ($("#artwl_mask").length == 0) { 
$("body").append(mask + boxcontain); 
$("head").append("<style type='text/css'>" + cssCode + "</style>"); 
if(options.title!=""){ 
$("#artwl_title").html(options.title); 
} 
if(options.content!=""){ 
$("#artwl_message").html(options.content); 
} 
} 
$("#"+options.showbtnid).click(function () { 
var height = $("#artwl_boxcontain").height(); 
var width = $("#artwl_boxcontain").width(); 
$("#artwl_mask").show(); 
$("#artwl_boxcontain").css("top", ($(window).height() - height) / 2).css("left", ($(window).width() - width) / 2).show(); 
if ($.browser.msie && $.browser.version.substr(0, 1) < 7) { 
width = $(window).width() > 600 ? 600 : $(window).width() - 40; 
$("#artwl_boxcontain").css("width", width + "px").css("top", ($(window).height() - height) / 2).css("left", ($(window).width() - width) / 2).show(); 
$("#artwl_mask").css("width", $(window).width() + "px").css("height", $(window).height() + "px").css("background", "#888"); 
$("#artwl_close").css("top", "30px").css("right", "30px").css("font-size", "20px").text("关闭"); 
} 
}); 
$("#artwl_close").click(function () { 
$("#artwl_mask").hide(); 
$("#artwl_boxcontain").hide(); 
}); 
}, 
artwl_close:function(options){ 
options=$.extend({ 
callback:null 
},options); 
$("#artwl_mask").hide(); 
$("#artwl_boxcontain").hide(); 
if(options.callback!=null){ 
options.callback(); 
} 
} 
}); 
})(jQuery); 

调用也非常简单，在页面引入此JS文件后，在页面加载方法中调用如下代码即可：
$.artwl_bind({ showbtnid: "btn_show", title: "From Cnblogs Artwl", content: $("#Content").html() });
　　这三个参数非常简单，第一个是弹出层触发事件的元素ID，第二个为弹出层的标题，第三个为弹出层的内容
注意事项
　　为了使用方便，本插件把JS跟CSS写在了一个文件中，如果要调整弹出层的样式可以修改如下CSS即可。
　　插件CSS代码：

复制代码代码如下:

html, body, h1, h2, h3, h4, h5 { 
margin: 0px; 
padding: 0px; 
} 
#artwl_mask { 
background - color: #000; 
position: absolute; 
top: 0px; 
left: 0px; 
width: 100%; 
height: 100%; 
opacity: 0.5; 
filter: alpha(opacity= 50); 
display: none; 
} 
#artwl_boxcontain { 
margin: 0 auto; 
position: absolute; 
z - index: 2; 
line - height: 28px; 
display: none; 
} 
#artwl_showbox { 
padding: 10px; 
background: #FFF; 
border - radius: 5px; 
margin: 20px; 
min - width: 300px; 
min - height: 200px; 
} 
#artwl_title { 
position: relative; 
height: 27px; 
border - bottom: 1px solid #999; 
} 
# artwl_close { 
position: absolute; 
cursor: pointer; 
outline: none; 
top: 0; 
right: 0; 
z - index: 4; 
width: 42px; 
height: 42px; 
overflow: hidden; 
background - image: url(/Images/feedback - close.png); 
_background: none; 
} 
#artwl_message { 
padding: 10px 0px; 
overflow: hidden; 
line - height: 19px; 
} 