定时弹出广告(图片)

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            #father{
                
                width:1300px;
                height: 2170px;
                margin: auto;
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            #logo{
                
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                height: 50px;
                
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                padding-top: 12px;
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            #pr{
                
                width: 1300px;
                height: 558px;
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            #pr_top{
                
                width: 1300px;
                height: 45px;
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            #pr_bottom{
                
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            #big{
                
                width: 544px;
                height: 248px;
                float:left;
            }
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                width: 180px;
                height: 248px;
                float:left;
                text-align: center;
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            a{
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                /*去掉超链接的下划线*/
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        <script type="text/javascript" src="../../js/jquery-1.8.3.js" ></script>
        
        <script type="text/javascript">
            $(function(){
                //书写显示广告图片的定时操作
                time = setInterval("showAd()",3000);
            });
            
            //书写显示广告图片的函数
            function showAd(){
                //3.获取广告图片,并让其显示
                $("#img2").show(2000);
                //$("#img2").slideDown(4000);
                //$("#img2").fadeIn(4000);
                //4.清除显示图片 定时操作
                clearInterval(time);
                //5.设置隐藏图片的定时操作
                time = setInterval("hiddenAd()",3000);
            }
            
            function hiddenAd(){
                //6.获取广告图片,并让其隐藏
                //$("#img2").hide();
                $("#img2").slideUp(2000);
                //$("#img2").fadeOut(3000);
                //7.清除隐藏图片的定时操作
                clearInterval(time);
            }
        </script>
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                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
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                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                    </div>
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                <div id="pr_bottom">
                    <div id="left">
                        <img src="../../img/big01.jpg" width="100%" height="100%" alt="" />
                    </div>
                    <div id="right">
                        <div id="big">
                            <img src="../../img/middle01.jpg" width="100%" height="100%" alt="" />
                            
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
                        <div class="small">
                            <a href="#"><img src="../../img/small03.jpg" /></a>
                            <a href="#"><p style="color: gray;">电炖锅</p></a>
                            <p style="color: red;">¥499</p>
                        </div>
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