基于Jquery的开发个代阴影的对话框效果代码

<script type="text/javascript" src="http://img.zzl.com/script/jquery/jquery-1.4.2.min.js"></script> 
<script type="text/javascript"> 
$(function() { 
$("#open").click(function() { 
openDialog(a1); //调用,直接写上DIV的ID即可 
}); 
}); 
var openDialog = function(o) { 
var dialog = new zzlDialog(o); 
dialog.open(); 
} 
var zzlDialog = function(o) { 
this.init = function() { 
/* 对话框初始化 */ 
var XBox = '\ 
<div id="mask"/>\ 
<div id="wai">\ 
</div>\ 
<div id="nie">\ 
<table>\ 
<thead>\ 
<tr>\ 
<td>\ 
阴影弹出框\ 
</td>\ 
<td>\ 
</td>\ 
</tr>\ 
</thead>\ 
<tbody>\ 
<tr>\ 
<td colspan="2">' + $(o).html() + '\ 
</td>\ 
</tr>\ 
</tbody>\ 
</table>\ 
</div>\ 
'; 
$(document.body).append(XBox); 
}; this.cssInit = function() { 
/* css初始化 */ 
$("#wai").css({ "padding": "10px", "background": "#000", "filter": "Alpha(Opacity='50')", "position": "absolute" }); 
$("#nie").css({ "position": "absolute", "z-index": "1000" }); 
$("#nie>table").css({ "border": "1px solid rgb(55,119,188)", "border-collapse": "collapse", "background": "#fff" }); 
$("#nie>table>thead>tr").css({ "background": "rgb(0,94,172)", "color": "#fff", "height": "30px", "font-size": "14px", "font-weight": "bold" }); 
$("#nie>table").find("td").css({ "padding": "5"}); 
/* 内部主体定位 */ 
$("#nie").css({ "top": "50px" }); 
$("#nie").css({ "left": "50px" }); 
/* 关闭按钮 */ 
var $close = $("#nie>table>thead").find("td").next("td"); 
$close.html("<span>关闭</span>"); 
$close.css({ "text-align": "right", "padding-right": "5px" }); 
$close.find("span").css({ "font-weight": "normal", "cursor": "hand" }); 
$close.find("span").click(function() { new zzlDialog().closes(); }); 
/* 外部阴影添加 ,及位置和大小由内部内容来控制 */ 
$("#wai").css({ "width": ($("#nie>table").width() + 16) + "px", "height": ($("#nie>table").height() + 16) + "px" }); 
$("#wai").css({ "top": $("#nie").position().top - 8 + "px", "left": $("#nie").position().left - 8 + "px", "z-index": $("#nie").css("z-index") }); 
// $("#wai").corner("5px"); //圆角 
}; 
this.open = function() { 
this.init(); 
this.cssInit(); 
this.shadow(); 
}; 
this.shadow = function() { 
this.event_b_show(); 
if (window.attachEvent) { 
window.attachEvent('onresize', this.event_b); 
window.attachEvent('onscroll', this.event_b); 
} 
else { 
window.addEventListener('resize', this.event_b, false); 
window.addEventListener('scroll', this.event_b, false); 
} 
}; 
this.event_b = function() { 
var oShadow = $('#mask'); 
if (oShadow.css("display") != "none") { 
if (this.event_b_show) { 
this.event_b_show(); 
} 
} 
}; 
this.closes = function() { 
var oShadow = $('#mask'); 
oShadow.css({ 'display': 'none' }); 
$("#wai").remove(); 
$("#nie").remove(); 
}; 
this.event_b_show = function() { 
var oShadow = $('#mask'); 
oShadow.css({ 'position': 'absolute', 'display': '', 'opacity': '0.1', 'filter': 'alpha(opacity=10)', 'background': '#000' }); 
var sClientWidth = parent ? parent.document.body.offsetWidth : document.body.offsetWidth; 
var sClientHeight = parent ? parent.document.body.offsetHeight : document.body.offsetHeight; 
var sScrollTop = parent ? (parent.document.body.scrollTop + parent.document.documentElement.scrollTop) : (document.body.scrollTop + document.documentElement.scrollTop); 
oShadow.css({ 'top': '0px', 'left': '0px', 'width': sClientWidth + "px", 'height': (sClientHeight + sScrollTop) + "px" });