lining 2013-10-11
jquery左右滚动焦点图banner图片,鼠标经过显示上下页,适合宽和高都比较大的页面使用附演示,感兴趣的朋友可以参考下
jquery左右滚动焦点图banner图片,鼠标经过显示上下页
适合宽和高都比较大的页面使用。
<div class="bannerbox"> <div id="focus"> <ul> <li><a href="http://www.jbxue.com/" target="_blank"> <img src="../dandong.png" alt="" /></a></li> <li><a href="http://www.jbxue.com/" target="_blank"> <img src="../mohe.png" alt="" /></a></li> <li><a href="http://www.freejs.net/" target="_blank"> <img src="../changbaishan.png" alt="" /></a></li> <li><a href="http://www.freejs.net/" target="_blank"> <img src="../erlianhaote.png" alt="" /></a></li> </ul> </div> </div>
css代码:
@charset "utf-8"; img { border: 0px; } .bannerbox { width: 320px; height: 150px; overflow: hidden; margin: 0px auto; } #focus { width: 320px; height: 150px; clear: both; overflow: hidden; position: relative; float: left; } #focus ul { width: 320px; height: 150px; float: left; position: absolute; clear: both; padding: 0px; margin: 0px; } #focus ul li { float: left; width: 320px; height: 150px; overflow: hidden; position: relative; padding: 0px; margin: 0px; } #focus .preNext { width: 250px; height: 150px; position: absolute; top: 0px; cursor: pointer; } #focus .pre { left: 0; background: url(../images/sprite.png) no-repeat left center; } #focus .next { rightright: 0; background: url(../images/sprite1.png) no-repeat rightright center; }
js文件
$(function () { var sWidth = $("#focus").width(); var len = $("#focus ul li").length; var index = 0; var picTimer; var btn = "<div class='btnBg'></div><div class='btn'>"; for (var i = 0; i < len; i++) { btn += "<span></span>"; } btn += "</div><div class='preNext pre'></div><div class='preNext next'></div>"; $("#focus").append(btn); $("#focus .btnBg").css("opacity", 0); $("#focus .btn span").css("opacity", 0.4).mouseenter(function () { index = $("#focus .btn span").index(this); showPics(index); }).eq(0).trigger("mouseenter"); $("#focus .preNext").css("opacity", 0.0).hover(function () { $(this).stop(true, false).animate({ "opacity": "0.5" }, 300); }, function () { $(this).stop(true, false).animate({ "opacity": "0" }, 300); }); $("#focus .pre").click(function () { index -= 1; if (index == -1) { index = len - 1; } showPics(index); }); $("#focus .next").click(function () { index += 1; if (index == len) { index = 0; } showPics(index); }); $("#focus ul").css("width", sWidth * (len)); $("#focus").hover(function () { clearInterval(picTimer); }, function () { picTimer = setInterval(function () { showPics(index); index++; if (index == len) { index = 0; } }, 2800); }).trigger("mouseleave"); function showPics(index) { var nowLeft = -index * sWidth; $("#focus ul").stop(true, false).animate({ "left": nowLeft }, 300); $("#focus .btn span").stop(true, false).animate({ "opacity": "0.4" }, 300).eq(index).stop(true, false).animate({ "opacity": "1" }, 300); } });