Js弹出DIV遮罩层并在页面居中显示效果，这两天要用到正好练练手,比想象中碰到的问题要多,比如: ie6背景透明 ie6居中显示 还有对js对象的理解
openID=显示按钮,conID=需要显示的div,closeID=关闭按钮
解决了:
1.可以遮挡ie6下的select元素 但是在ie6下div没有透明度
2.弹出的div可以一直在浏览器屏幕中间显示
问题:
1.目前不支持.class 只支持#id
2.需要显示的div需要自己设置css
3.在ie6下需要设置css
例如div {_position: absolute;_top: expression(documentElement.scrollTop + 340 + "px"); }
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
演示代码：
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<!DOCTYPE HTML>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title></title>
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<style type="text/css">
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*{margin:0;padding:0;}
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#bt{border: 2px solid #000;background-color: #ccc;cursor: pointer;padding: 2px 5px;}
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/****订单弹出框*****/
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.VeryhuoCOM{ 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;}
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.VeryhuoCOM dl{ overflow:hidden; padding:20px; margin:0;}
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.VeryhuoCOM dl dt{ line-height:30px;}
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.VeryhuoCOM dl dd{ line-height:25px; height:25px; padding-left:10px; margin:0;}
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.VeryhuoCOM dl dd label{ padding-left:5px;}
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.VeryhuoCOM dl dd.cBtn{ width:102px; height:28px; background:url(../images/member/chooseBtn.gif) no-repeat; margin-top:10px; padding:0;}
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.VeryhuoCOM dl dd.cBtn a{ display:block; text-align:center;}
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.VeryhuoCOM dl dd.cBtn a:link,.VeryhuoCOM dl dd.cBtn a:visited{ color:#000;}
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.VeryhuoCOM dl dd.lBtn{ float:left; display:inline; margin-left:100px;}
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.VeryhuoCOM dl dd.rBtn{ float:left; display:inline; margin-left:10px;}
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</style>
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</head>
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<body>
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<a id="bt">点击弹出div</a>
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<div style="height:1000px;">
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sdfdsf
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<select>
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<option>Volvo</option>
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<option selected="selected">Saab</option>
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<option>Mercedes</option>
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<option>Audi</option>
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</select>
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</div>
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<a id="bt">点击弹出div</a>
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<div style="height:1000px;">
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sdfdsf
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<select>
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<option>Volvo</option>
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<option selected="selected">Saab</option>
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<option>Mercedes</option>
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<option>Audi</option>
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</select>
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</div>
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<div id="VeryhuoCOM" class="VeryhuoCOM" style="display: none;">
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<dl>
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<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>
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<dd><input type="radio" name="reason" id="reason1"><label for="reason1">改变主意,现在不想买了</label></dd>
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<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>
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<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>
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<dd><input type="radio" name="reason" id="reason4"><label for="reason4">网银,信用卡等支付有问题</label></dd>
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<dd><input type="radio" name="reason" id="reason5"><label for="reason5">等待时间过长,不耐烦了</label></dd>
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<dd><input type="radio" name="reason" id="reason6"><label for="reason6">商品价格较贵</label></dd>
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<dd><input type="radio" name="reason" id="reason7"><label for="reason7">出现商品缺货情况</label></dd>
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<dd><input type="radio" name="reason" id="reason8"><label for="reason8">其它的原因</label></dd>
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<dd><input type="radio" disabled="disabled"><label>72小时到期自动取消(不可选)</label></dd>
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<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>
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</dl>
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</div>
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<script type="text/javascript">
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/*
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openID=显示按钮,conID=需要显示的div,closeID=关闭按钮
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Downloads By http://www.veryhuo.com
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解决了:
-
1.可以遮挡ie6下的select元素 但是在ie6下div没有透明度
-
2.弹出的div可以一直在浏览器屏幕中间显示
-
问题:
-
1.目前不支持.class 只支持#id
-
2.需要显示的div需要自己设置css
-
3.在ie6下需要设置css
-
例如div {_position: absolute;_top: expression(documentElement.scrollTop + 340 + "px"); }
-
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
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*/
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var _CalF = { //便捷方法
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$ : function(id){return document.getElementById(id)},
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create : function(id){return document.createElement(id)},
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append : function(id){return document.body.appendChild(id)},
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remove : function(id){return document.body.removeChild(id)}
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}
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function popup(openID,conID,closeID){
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this.onclick(openID,conID,closeID);
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}
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popup.prototype = {
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cssStyle : "width:100%;position:absolute;left:0;top:0;filter:alpha(opacity = 50);opacity:0.5;border:0;overflow:auto;",
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createShadowDiv : function(){ //背景遮罩
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var shadowDiv = _CalF.create("div");
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shadowDiv.id = "shadowDiv";
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shadowDiv.style.cssText = this.cssStyle;
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shadowDiv.style.height = document.body.scrollHeight + "px";
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shadowDiv.style.backgroundColor = "#000"
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shadowDiv.style.zindex = 100;
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_CalF.append(shadowDiv);
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},
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createIframe : function(){ //iframe
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var iframe = _CalF.create("iframe");
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iframe.id = "shadowIframe";
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iframe.style.cssText = this.cssStyle;
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iframe.style.height = document.body.scrollHeight + "px";
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iframe.style.zindex = 99;
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_CalF.append(iframe);
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},
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removeDiv : function(){
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_CalF.remove(_CalF.$("shadowDiv"));
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_CalF.remove(_CalF.$("shadowIframe"));
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},
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onclick : function(openID,conID,closeID){
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var that = this;
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_CalF.$(openID).onclick = function(){
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if(window.ActiveXObject){ //ie6
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if(!window.XMLHttpRequest){
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document.body.style.cssText = "_background-image: url(about:blank);_background-attachment: fixed;";
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}
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}
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that.createIframe();
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that.createShadowDiv();
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_CalF.$(conID).style.display = "block";
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}
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document.getElementById(closeID).onclick = function(){
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_CalF.$(conID).style.display = "none";
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that.removeDiv();
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}
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}
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}
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var bt = new popup("bt","VeryhuoCOM","close");
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</script>
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</body>
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</html> <div style="text-align:center;margin:30px 0 0 0;"><hr style="color:#999;height:1px;">如不能显示效果，请按Ctrl+F5刷新本页</div>
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