js代码实现banner图片轮播

这是我以前写过的一个，样式你改一下就OK了
<div class="fbanner widget3924">
<div id="i_focus">
<div id="i_focus_pic">
<ul id="i_focus_piclist">
<li style="display: none;">
<a href="" target="_blank" style="background: url(/templates/runlinjinguan/images/banner1.jpg) center 0 no-repeat;">

</a>
</li>
<li style="display: list-item;">
<a href="" target="_blank" style="background: url(/templates/runlinjinguan/images/banner4.jpg) center 0 no-repeat;">

</a>
</li>
<li style="display: none;">
<a href="" target="_blank" style="background: url(/templates/runlinjinguan/images/banner3.jpg) center 0 no-repeat;">

</a>
</li>
<li style="display: none;">
<a href="" target="_blank" style="background: url(/templates/runlinjinguan/images/banner2.jpg) center 0 no-repeat;">

</a>
</li>
</ul>
<div id="i_focus_opdiv">
</div>
<ul id="i_focus_btn">
<li id="p0" class="">
<span>

</span>
</li>
<li id="p0" class="i_cur">
<span>

</span>
</li>
<li id="p0" class="">
<span>

</span>
</li>
<li id="p0" class="">
<span>

</span>
</li>
</ul>
</div>
</div>
<script type="text/javascript" src="/templates/runlinjinguan/js/flash.js"></script>
<script type="text/javascript">
$("#i_focus_btn").find("li").eq(0).addClass("i_cur");
</script>
</div>

引用的js文件
// JavaScript Document
//flash js
$(document).ready(function () {
var i_curIndex = 0;
var beauBeauSlide; //函数对象
var i_curID = 0; //取得鼠标下方的对象ID
var pictureID = 0; //索引ID

$("#i_focus_piclist li").eq(0).show(); //默认
autoScroll();
$("#i_focus_btn li").hover(function (e) {
StopScrolll();
$("#i_focus_btn li").removeClass("i_cur") //所有的li去掉当前的样式加上正常的样式
$(this).addClass("i_cur"); //而本身则加上当前的样式去掉正常的样式
i_curID = $(this).attr("id"); //取当前元素的ID
pictureID = $("#i_focus_btn li").index(this);// i_curID.substring(i_curID.length - 1); //取最后一个字符
$("#i_focus_piclist li").eq(pictureID).fadeIn("slow"); //本身显示
$("#i_focus_piclist li").not($("#i_focus_piclist li")[pictureID]).hide(); //除了自身别的全部隐藏
$("#i_focus_tx li").hide();
$("#i_focus_tx li").eq(pictureID).show();

},
function () {
//当鼠标离开对象的时候获得当前的对象的ID以便能在启动自动时与其同步
i_curID = $(this).attr("id"); //取当前元素的ID
pictureID = i_curID.substring(i_curID.length - 1); //取最后一个字符
i_curIndex = pictureID;
autoScroll();
});
//自动滚动

function autoScroll() {
var myNubli = $("#i_focus_btn li").size();
if (myNubli > 1) {
$("#i_focus_btn li:last").removeClass("i_cur");
$("#i_focus_tx li:last").hide();
$("#i_focus_btn li").eq(i_curIndex).addClass("i_cur");
$("#i_focus_btn li").eq(i_curIndex - 1).removeClass("i_cur");
$("#i_focus_tx li").eq(i_curIndex).show();
$("#i_focus_tx li").eq(i_curIndex - 1).hide();
$("#i_focus_piclist li").eq(i_curIndex).fadeIn("slow");
$("#i_focus_piclist li").eq(i_curIndex - 1).hide();
i_curIndex++;
i_curIndex = i_curIndex >= myNubli ? 0 : i_curIndex;
beauBeauSlide = setTimeout(autoScroll, 5000);
}
}
function StopScrolll() //当鼠标移动到对象上面的时候停止自动滚动
{
clearTimeout(beauBeauSlide);
}
});
//第二个渐隐幻灯开始
var defaultOpts = {
interval: 3000,
fadeInTime: 800,
fadeOutTime: 500
};

var _titles = $("ul.slide-txt li");
var _titles_bg = $("ul.op li");
var _bodies = $("ul.slide-pic li");
var _count = _titles.length;
var _current = 0;
var _intervalID = null;
var stop = function () {
window.clearInterval(_intervalID);
};
var slide = function (opts) {
if (opts) {
_current = opts.current || 0;
} else {
_current = (_current >= (_count - 1)) ? 0 : (++_current);
};
_bodies.filter(":visible").fadeOut(defaultOpts.fadeOutTime,
function () {
_bodies.eq(_current).fadeIn(defaultOpts.fadeInTime);
_bodies.removeClass("cur").eq(_current).addClass("cur");
});
_titles.removeClass("cur").eq(_current).addClass("cur");
_titles_bg.removeClass("cur").eq(_current).addClass("cur");
}; //endof slide
var go = function () {
stop();
_intervalID = window.setInterval(function () {
slide();
},
defaultOpts.interval);
}; //endof go
var itemMouseOver = function (target, items) {
stop();
var i = $.inArray(target, items);
slide({
current: i
});
}; //endof itemMouseOver
_titles.hover(function () {
if ($(this).attr('class') != 'cur') {
itemMouseOver(this, _titles);
} else {
stop();
}
},
go);
//_titles_bg.hover(function() { itemMouseOver(this, _titles_bg); }, go);
_bodies.hover(stop, go);
go();
var slideX = {
_this: $('.catalog .imgbox'),
_btnLeft: $('.catalog .left'),
_btnRight: $('.catalog .right'),
init: function () {
slideX._btnLeft.click(slideX.slideLeft);
slideX._btnRight.click(slideX.slideRight);
},
slideLeft: function () {
slideX._btnLeft.unbind('click', slideX.slideLeft);
for (i = 0; i < 2; i++) {
slideX._this.find('li:last').prependTo(slideX._this);
}
slideX._this.css('marginLeft', -224);
slideX._this.animate({
'marginLeft': 0
},
500,
function () {
slideX._btnLeft.bind('click', slideX.slideLeft);
});
return false;
},
slideRight: function () {
slideX._btnRight.unbind('click', slideX.slideRight);
slideX._this.animate({
'marginLeft': -224
},
500,
function () {
slideX._this.css('marginLeft', '0');
for (i = 0; i < 2; i++) {
slideX._this.find('li:first').appendTo(slideX._this)
}
slideX._btnRight.bind('click', slideX.slideRight);
});
return false;
}
}
$(document).ready(function () {
slideX.init();
})
$(document).ready(function () {
var newTime = new Date();
var newTime = newTime.getTime();
var $imgTmp = $('#topromotion').find('img:first');
var osrc = $imgTmp.attr('src');
$imgTmp.attr('src', osrc + '?' + newTime);
});

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