jquery左右滚动焦点图banner图片,鼠标经过显示上下页
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
XML/HTML Code
- <div class="bannerbox">
- <div id="focus">
- <ul>
- <li><a href="http://www.freejs.net/" target="_blank">
- <img src="../dandong.png" alt="" /></a></li>
- <li><a href="http://www.freejs.net/" 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 Code
- @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
JavaScript Code
- $(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);
- }
- });