1 <!DOCTYPE HTML>
2 <head>
3 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
4 <title>Js制作简单弹出层DIV在页面居中 中间显示 遮罩 方法</title>
5 <style type="text/css">
6 *{margin:0;padding:0;}
7 #bt{border: 2px solid #000;background-color: #ccc;cursor: pointer;padding: 2px 5px;}
8
9 /****订单弹出框*****/
10 .orderMsg{ position:fixed;_position: absolute;_top: expression(documentElement.scrollTop + 340 + "px"); background:#fff; border:1px solid #939395; width:500px; height:340px;top: 50%;left: 50%;margin: -200px 0 0 -250px; overflow:hidden; z-index:99999; font-size:14px; color:#000; display:none;}
11 .orderMsg dl{ overflow:hidden; padding:20px; margin:0;}
12 .orderMsg dl dt{ line-height:30px;}
13 .orderMsg dl dd{ line-height:25px; height:25px; padding-left:10px; margin:0;}
14 .orderMsg dl dd label{ padding-left:5px;}
15 .orderMsg dl dd.cBtn{ width:102px; height:28px; background:url(../images/member/chooseBtn.gif) no-repeat; margin-top:10px; padding:0;}
16 .orderMsg dl dd.cBtn a{ display:block; text-align:center;}
17 .orderMsg dl dd.cBtn a:link,.orderMsg dl dd.cBtn a:visited{ color:#000;}
18 .orderMsg dl dd.lBtn{ float:left; display:inline; margin-left:100px;}
19 .orderMsg dl dd.rBtn{ float:left; display:inline; margin-left:10px;}
20 </style>
21 </head>
22 <body>
23 <a id="bt">点击弹出div</a>
24 <div style="height:1000px;">
25 sdfdsf
26 <select>
27 <option>Volvo</option>
28 <option selected="selected">Saab</option>
29 <option>Mercedes</option>
30 <option>Audi</option>
31 </select>
32 </div>
33
34 <a id="bt">点击弹出div</a>
35
36 <div style="height:1000px;">
37 sdfdsf
38 <select>
39 <option>Volvo</option>
40 <option selected="selected">Saab</option>
41 <option>Mercedes</option>
42 <option>Audi</option>
43 </select>
44 </div>
45
46 <div id="orderMsg" class="orderMsg" style="display: none;">
47 <dl>
48 <dt>请您告知我们取消订单的原因，以便我们改进。非常感谢!</dt>
49 <dd><input type="radio" name="reason" id="reason1"><label for="reason1">改变主意,现在不想买了</label></dd>
50 <dd><input type="radio" name="reason" id="reason2"><label for="reason2">刚才信息填错了,要重新下单</label></dd>
51 <dd><input type="radio" name="reason" id="reason3"><label for="reason3">先取消,再更换或添加新商品</label></dd>
52 <dd><input type="radio" name="reason" id="reason4"><label for="reason4">网银,信用卡等支付有问题</label></dd>
53 <dd><input type="radio" name="reason" id="reason5"><label for="reason5">等待时间过长,不耐烦了</label></dd>
54 <dd><input type="radio" name="reason" id="reason6"><label for="reason6">商品价格较贵</label></dd>
55 <dd><input type="radio" name="reason" id="reason7"><label for="reason7">出现商品缺货情况</label></dd>
56 <dd><input type="radio" name="reason" id="reason8"><label for="reason8">其它的原因</label></dd>
57 <dd><input type="radio" disabled="disabled"><label>72小时到期自动取消(不可选)</label></dd>
58 <dd class="cBtn lBtn"><a href="#">选好了</a></dd><dd class="cBtn rBtn"><a href="#" onclick="" id="close">点击取消</a></dd>
59 </dl>
60 </div>
61
62 <script type="text/javascript">
63 /*
64 openID=显示按钮,conID=需要显示的div,closeID=关闭按钮
65
66 解决了:
67 1.可以遮挡ie6下的select元素 但是在ie6下div没有透明度
68 2.弹出的div可以一直在浏览器屏幕中间显示
69
70 问题:
71 1.目前不支持.class 只支持#id
72 2.需要显示的div需要自己设置css
73 3.在ie6下需要设置css
74 例如div {_position: absolute;_top: expression(documentElement.scrollTop + 340 + "px"); }
75 4.ie6下背景div没有透明度 这里我上网搜到的结果都不能解决 如果您有方法请给我留言
76 */
77
78 var _CalF = { //便捷方法
79 $ : function(id){return document.getElementById(id)},
80 create : function(id){return document.createElement(id)},
81 append : function(id){return document.body.appendChild(id)},
82 remove : function(id){return document.body.removeChild(id)}
83 }
84
85 function popup(openID,conID,closeID){
86 this.onclick(openID,conID,closeID);
87 }
88
89 popup.prototype = {
90
91 cssStyle : "width:100%;position:absolute;left:0;top:0;filter:alpha(opacity = 50);opacity:0.5;border:0;overflow:auto;",
92
93 createShadowDiv : function(){ //背景遮罩
94 var shadowDiv = _CalF.create("div");
95 shadowDiv.id = "shadowDiv";
96 shadowDiv.style.cssText = this.cssStyle;
97 shadowDiv.style.height = document.body.scrollHeight + "px";
98 shadowDiv.style.backgroundColor = "#000"
99 shadowDiv.style.zindex = 100;
100 _CalF.append(shadowDiv);
101 },
102
103 createIframe : function(){ //iframe
104 var iframe = _CalF.create("iframe");
105 iframe.id = "shadowIframe";
106 iframe.style.cssText = this.cssStyle;
107 iframe.style.height = document.body.scrollHeight + "px";
108 iframe.style.zindex = 99;
109 _CalF.append(iframe);
110 },
111
112 removeDiv : function(){
113 _CalF.remove(_CalF.$("shadowDiv"));
114 _CalF.remove(_CalF.$("shadowIframe"));
115 },
116
117
118 onclick : function(openID,conID,closeID){
119 var that = this;
120
121 _CalF.$(openID).onclick = function(){
122
123 if(window.ActiveXObject){ //ie6
124 if(!window.XMLHttpRequest){
125 document.body.style.cssText = "_background-image: url(about:blank);_background-attachment: fixed;";
126 }
127 }
128
129 that.createIframe();
130 that.createShadowDiv();
131 _CalF.$(conID).style.display = "block";
132 }
133
134 document.getElementById(closeID).onclick = function(){
135 _CalF.$(conID).style.display = "none";
136 that.removeDiv();
137 }
138 }
139
140 }
141
142 var bt = new popup("bt","orderMsg","close");
143
144 </script>
145 </body>
146 </html>
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