基于jQuery的公告无限循环滚动实现代码_jquery



在线演示：http://demo.jb51.net/js/2012/callboard/
jQuery代码
代码如下:
//第二版：Newton改造
(function (win){
var callboarTimer;
var callboard = $('#callboard');
var callboardUl = callboard.find('ul');
var callboardLi = callboard.find('li');
var liLen = callboard.find('li').length;
var initHeight = callboardLi.first().outerHeight(true);
win.autoAnimation = function (){
if (liLen <= 1) return;
var self = arguments.callee;
var callboardLiFirst = callboard.find('li').first();
callboardLiFirst.animate({
marginTop:-initHeight
}, 500, function (){
clearTimeout(callboarTimer);
callboardLiFirst.appendTo(callboardUl).css({marginTop:0});
callboarTimer = setTimeout(self, 5000);
});
}
callboard.mouseenter(
function (){
clearTimeout(callboarTimer);
}).mouseleave(function (){
callboarTimer = setTimeout(win.autoAnimation, 5000);
});
}(window));
setTimeout(window.autoAnimation, 5000);

HTML代码：
代码如下:

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公告：前端组上线一个月零八天，PR升为3，BD权重1

CSS代码：(可根据需求另设)
代码如下:
#callboard { height:24px; line-height:24px; overflow:hidden;}
#callboard ul { padding:0;}
#callboard li { padding:0;}

完整演示代码：
代码如下:

公告[2]：前端组上线一个月零八天，PR升为3，BD权重1

公告[3]：撤下了BloggerAds，原因为收入太少，打开速度慢！

公告[1]：前端组主题正在整理中..有需要用的朋友请留个言，以方便及时通知！

(function (win){
var callboarTimer;
var callboard = $('#callboard');
var callboardUl = callboard.find('ul');
var callboardLi = callboard.find('li');
var liLen = callboard.find('li').length;
var initHeight = callboardLi.first().outerHeight(true);
win.autoAnimation = function (){
if (liLen <= 1) return;
var self = arguments.callee;
var callboardLiFirst = callboard.find('li').first();
callboardLiFirst.animate({
marginTop:-initHeight
}, 500, function (){
clearTimeout(callboarTimer);
callboardLiFirst.appendTo(callboardUl).css({marginTop:0});
callboarTimer = setTimeout(self, 5000);
});
}
callboard.mouseenter(
function (){
clearTimeout(callboarTimer);
}).mouseleave(function (){
callboarTimer = setTimeout(win.autoAnimation, 5000);
});
}(window));
setTimeout(window.autoAnimation, 5000);