鼠标悬浮停留三秒后自动显示大图js代码

<style>*{margin:0;padding:0;list-style-type:none;}img,a{border:0;}.piccon{height:75px;margin:100px 0 0 50px;}.piccon li{float:left;padding:0 10px;}#preview{position:absolute;border:1px solid #ccc;background:#333;padding:5px;display:none;color:#fff;z-index:2000;}</style>

<script type="text/javascript">this.imagePreview = function(){xOffset = 10;yOffset = 30;var urll;$(".widget .ks-content a,.box .ks-switchable-content div li a").hover(function(){//$(".widget .ks-content a").hover(function(e){//var goods_id = $(this).attr("href").replace("goods/", "");var goods_id = $(this).attr("href").replace("index.php?app=goods&id=", "");this.t = this.title;this.title = " ";var c = (this.t != "") ? "<br/>" + this.t : " ";$.post("index.php?app=default&act=ajaxBigImage", {goods_id: goods_id},function(data){$.ajaxSettings.async = false;if(data!=0){urll = data;$("body").append("<div id='preview'><img src="+ urll +" />"+ c +"</div>");return true;}else{return false;}});/*$("#preview").css("top",(e.pageY - xOffset) + "px").css("left",(e.pageX + yOffset) + "px").fadeIn("fast");*/$('#preview').css({position:'absolute',left: ($(window).width() - $('#preview').outerWidth())/2,top: ($(window).height() - $('#preview').outerHeight())/2 + $(document).scrollTop()});setTimeout(function(){$("#preview").fadeIn("fast");},3000)},function(){this.title = this.t;$("#preview").remove();});/*$("a.preview").mousemove(function(e){$("#preview").css("top",(e.pageY - xOffset) + "px").css("left",(e.pageX + yOffset) + "px");});*/};$(document).ready(function(){imagePreview();});</script><div id="_widget_579" name="jdr_sale_list" widget_type="widget" class="widget"><div class="sale_list mt10 clearfix"><h2>销售排行</h2><div><ul class="ks-nav ks-nav1476271702"><li class="ks-active nav1">特效礼花</li><li class="nav2">套餐烟花</li></ul><div class="ks-content"><ul class="box" id="box1_1476271702"><li ><div class="pic"><a href="index.php?app=goods&id=331"><img alt="【81发六锦系列组合烟花】" src="data/files/store_927/goods_51/small_201312121557314803.JPG" height="60" width="60"></a><b>1</b></div><div class="info"><div class="title"><a href="index.php?app=goods&id=331">【81发六锦系列组合烟花】</a></div><div class="price">¥200.00</div></div></li><li ><div class="pic"><a href="index.php?app=goods&id=336"><img alt="【八喜系列组合烟花】五福临门、六六大顺、七星高照、八方得利" src="data/files/store_927/goods_33/small_201312121630335585.JPG" height="60" width="60"></a><b>2</b></div><div class="info"><div class="title"><a href="index.php?app=goods&id=336">【八喜系列组合烟花】五福临门、六六大顺、七星高照、八方得利</a></div><div class="price">¥180.00</div></div></li><li ><div class="pic"><a href="index.php?app=goods&id=375"><img alt="【五福系列组合烟花】福运长流、福满人间、福寿满堂、福如东海、福到财来" src="data/files/store_927/goods_193/small_201312130956337166.JPG" height="60" width="60"></a><b>3</b></div><div class="info"><div class="title"><a href="index.php?app=goods&id=375">【五福系列组合烟花】福运长流、福满人间、福寿满堂、福如东海、福到财来</a></div><div class="price">¥260.00</div></div></li><li style="border-color:#fff;" ><div class="pic"><a href="index.php?app=goods&id=399"><img alt="合家欢乐组合烟花/小礼花" src="data/files/store_927/goods_197/small_201312131059578989.JPG" height="60" width="60"></a><b>4</b></div><div class="info"><div class="title"><a href="index.php?app=goods&id=399">合家欢乐组合烟花/小礼花</a></div><div class="price">¥480.00</div></div></li></ul><ul class="box box2" id="box2_1476271702" style="display:none;"><li ><div class="pic"><a href="index.php?app=goods&id=310"><img alt="套餐烟花-儿孙满堂" src="data/files/store_927/goods_92/small_201312121508128170.jpg" height="60" width="60"></a> <b>1</b></div><div class="info"><div class="title"><a href="index.php?app=goods&id=310">套餐烟花-儿孙满堂</a></div><div class="price">¥888.00</div></div></li><li ><div class="pic"><a href="index.php?app=goods&id=305"><img alt="套餐烟花-六六大顺" src="data/files/store_927/goods_136/small_201312121455369033.jpg" height="60" width="60"></a> <b>2</b></div><div class="info"><div class="title"><a href="index.php?app=goods&id=305">套餐烟花-六六大顺</a></div><div class="price">¥666.00</div></div></li><li ><div class="pic"><a href="index.php?app=goods&id=303"><img alt="套餐烟花-一路顺发" src="data/files/store_927/goods_118/small_201312121451582290.jpg" height="60" width="60"></a> <b>3</b></div><div class="info"><div class="title"><a href="index.php?app=goods&id=303">套餐烟花-一路顺发</a></div><div class="price">¥1,688.00</div></div></li><li style="border-color:#fff;" ><div class="pic"><a href="index.php?app=goods&id=300"><img alt="套餐烟花-喜事连连" src="data/files/store_927/goods_14/small_201312121443346243.jpg" height="60" width="60"></a> <b>4</b></div><div class="info"><div class="title"><a href="index.php?app=goods&id=300">套餐烟花-喜事连连</a></div><div class="price">¥1,288.00</div></div></li></ul></div></div></div>后端处理//ajaxfunction ajaxBigImage(){if(!empty($_POST['goods_id'])){$goods_id=$_POST['goods_id'];$goodsimg_mod = & m('goodsimage');$uploadedfile_mod = & m('uploadedfile');//$file_id = $goodsimg_mod->getOne("select file_id from `ecm_goods_image` WHERE goods_id={$goods_id} ORDER BY file_id DESC");//获取file_id 字符串$file_arr = $goodsimg_mod->getCol("select file_id from `ecm_goods_image` WHERE goods_id={$goods_id} ORDER BY file_id DESC");if(!empty($file_arr)){$file_str = implode(",",$file_arr);}//echo $file_str;$url_arr = $uploadedfile_mod->getAll("select file_type,file_path from `ecm_uploaded_file` WHERE file_id IN({$file_str}) ORDER BY add_time DESC");if(!empty($url_arr)){foreach ($url_arr as $v){if($v['file_type'] == 'image/gif'){$url = $v['file_path'];break;exit();}else {unset($v);}}}//$url = $uploadedfile_mod->getOne("select file_path from `ecm_uploaded_file` WHERE file_id={$file_id} ORDER BY add_time DESC");if(!empty($url)){echo $url;exit();}else{echo 0;exit();}}else{echo 0;}}