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<div class="focusPicture"><section class="mPhoto" id="mPhoto"><img src="images/20161021/b_5809b93b66d18.jpg"/></section><！-- 主要的大图 --><section class="oPhoto"><div class="imgWrap"><section class="on"><img src="images/20161021/b_5809b93b66d18.jpg"/></section><section><img src="images/20161021/b_5809b96c4da53.jpg"/></section><section><img src="images/20161021/b_5809b9bea39c4.jpg"/></section><section><img src="images/20161021/b_5809ba288384e.jpg"/></section><section><img src="images/20161021/b_5809bae42fa81.jpg"/></section><section><img src="images/20161021/b_5809ba288384e.jpg"/></section><section><img src="images/20161021/b_5809bb3da0bbc.jpg"/></section></div></section><！-- 其他的小图 --><section class="prevNext"><div class="prev"><i></i></div><！-- 上一张 --><div class="next"><i></i></div><！-- 下一张 --></section><！-- 上下翻页 --></div><！-- 焦点图区 -->

window.onload = function（）{ /*焦点图特效*/ var mPhoto = document.getElementById（"mPhoto"）; var imgWrap = document.getElementsByClassName（"imgWrap"）[0]; var wrapSize = 4; /*图片容器最大显示图片数*/ if（imgWrap.getElementsByTagName（"section"）.length>wrapSize）{imgWrap.innerHTML = imgWrap.innerHTML+imgWrap.innerHTML; }var oImages = imgWrap.getElementsByTagName（"section"）; for（var i = 0 ; i<oImages.length; i++） {oImages[i].onmouseover = function（）{ for（var j = 0 ; j<oImages.length; j++） {removeClass（oImages[j],"on"）; } var imgSrc = this.getElementsByTagName（"img"）[0].src; addClass（this,"on"）; mPhoto.getElementsByTagName（"img"）[0].src = imgSrc;} } /*上下翻页容器*/ var oPrevNext = document.getElementsByClassName（"prevNext"）[0]; var oPrev = oPrevNext.getElementsByClassName（"prev"）[0]; var oNext = oPrevNext.getElementsByClassName（"next"）[0]; var oImageHeight = oImages[0].getElementsByTagName（"img"）[0].height||0; var oPositionTop = imgWrap.offsetTop; var imgIndex = 0;if（oImages.length>wrapSize*2） {oPrev.style.display = "block";oNext.style.display = "block"; }/*上一页*/ oPrev.onclick=function（） {imgIndex-=1;if（imgIndex<=0）{ imgIndex = 6;}var oTop = imgIndex*（oImageHeight+8）;imgWrap.style.top = -oTop+"px";/*获取当前图片的索引*/for（var i = 0 ; i<oImages.length; i++）{ var oBol = hasClass（oImages[i],"on"）||false; if（oBol）{var index = oIndex（oImages[i],oImages）;index=index-1;if（imgIndex==6）{ index = 6;}for（var j = 0 ; j<oImages.length; j++）{/*清除其他的图片on样式*/ removeClass（oImages[j],"on"）;}addClass（oImages[index],"on"）;var imgSrc = oImages[index].getElementsByTagName（"img"）[0].src;mPhoto.getElementsByTagName（"img"）[0].src = imgSrc;return false; }} }/*下一页*/ oNext.onclick = function（） {imgIndex+=1;if（imgIndex>=6）{ imgIndex = 0;}var oTop = imgIndex*（oImageHeight+8）;imgWrap.style.top = -oTop+"px";/*获取当前图片的索引*/for（var i = 0 ; i<oImages.length; i++）{ var oBol = hasClass（oImages[i],"on"）||false; if（oBol）{var index = oIndex（oImages[i],oImages）;index=index+1;if（imgIndex==0）{ index = 1;}for（var j = 0 ; j<oImages.length; j++）{/*清除其他的图片on样式*/ removeClass（oImages[j],"on"）;}addClass（oImages[index],"on"）;var imgSrc = oImages[index].getElementsByTagName（"img"）[0].src;mPhoto.getElementsByTagName（"img"）[0].src = imgSrc;return false; }} }}function hasClass（element,cName）{//检查class是否存在 return ！！element.className.match（new RegExp（"（\s|^）"+cName+"（\s|$）"））;}function addClass（element,cName）{//添加一个class if（！hasClass（element,cName）） {element.className +=" "+cName; }}function removeClass（element,cName）{//移除一个class if（hasClass（element,cName）） {element.className = element.className.replace（new RegExp（"（\s|^）"+cName+"（\s|$）"）," "）; }}function oIndex（current, obj）{/*获取索引*/ for （var i = 0, length = obj.length; i<length; i++） { if （obj[i] == current）{return i; }} }

.productInfo .focusPicture{ width: 698px; float: left; position: relative; border-right: 1px solid #d9cdb4;}.productInfo .focusPicture .mPhoto{ width: 542px; height: 360px;}.productInfo .focusPicture .mPhoto img{ width: 100%; height: 100%;}.productInfo .focusPicture .oPhoto{ width: 128px; height: 352px; position: absolute; right: 14px; top: 4px; overflow: hidden;}.productInfo .oPhoto div{ width: 128px; position: absolute; left:0; top:0; -webkit-transition: top .2s ease-out; -moz-transition: top .2s ease-out; transition: top .2s ease-out; }.productInfo .oPhoto section{ height: 78px; margin: 8px 0; position: relative; cursor: pointer;}.productInfo .oPhoto section::before { content: ""; display: block; width: 100%; height: 100%; background-color: rgba（255,255,255,.42）; position: absolute; left: 0; top: 0;}.productInfo .oPhoto section.on::before{ display: none;}.productInfo .focusPicture .oPhoto img{ width: 100%; height: 100%;}.productInfo .focusPicture .prevNext{ width: 32px; height: 32px; position: absolute; top: -4px; right: 62px;}.productInfo .prevNext div.prev,.productInfo .prevNext div.next{ width: 32px; height: 32px; -webkit-border-radius: 50%; -moz-border-radius: 50%; border-radius: 50%; background-color: #fff; position: absolute; left: 0; -webkit-transition: all .25s; -moz-transition: all .25s; transition: all .25s; display: none; cursor: pointer;}.productInfo .prevNext div.prev{ top: 0; box-shadow: 0 -2px 4px rgba（0,0,0,.24）;}.productInfo .prevNext div.next{ top: 336px; box-shadow: 0 2px 4px rgba（0,0,0,.24）;}.productInfo .prevNext div.prev:hover{ box-shadow: 2px -2px 3px rgba（0,0,0,.24）;}.productInfo .prevNext div.next:hover{ box-shadow: -2px 2px 3px rgba（0,0,0,.24）;}.productInfo .prevNext div.prev i,.productInfo .prevNext div.next i{ width: 16px; height: 16px; position: absolute; top: 0; right: 0; bottom: 0; left: 0; margin: auto; cursor: pointer;}.productInfo .prevNext div.prev i{ background: url（../images/arrows-icon.png） 0 -16px no-repeat; background-size: 48px 32px; bottom: 2px;}.productInfo .prevNext div.next i{ background: url（../images/arrows-icon.png） 0 0 no-repeat; background-size: 48px 32px; top: 2px;}.productInfo .prevNext div.prev:hover i,.productInfo .prevNext div.next:hover i{ -webkit-transform: scale（1.1）; -moz-transform: scale（1.1）; transform: scale（1.1）;}.productInfo .prevNext div.prev:hover i{ background: url（../images/arrows-icon.png） -16px -16px no-repeat; background-size: 48px 32px;}.productInfo .prevNext div.next:hover i{ background: url（../images/arrows-icon.png） -16px 0px no-repeat; background-size: 48px 32px;}.productInfo .prevNext div.prev:active i{ background: url（../images/arrows-icon.png） -32px -16px no-repeat; background-size: 48px 32px;}.productInfo .prevNext div.next:active i{ background: url（../images/arrows-icon.png） -32px 0px no-repeat; background-size: 48px 32px;}