天天无用 2013-07-09
<style type="text/css">
*{margin:0;padding:0;list-style-type:none;}
a,img{border:0;}
a,a:visited{color:#5e5e5e; text-decoration:none;}
a:hover{color:#b52725;text-decoration:underline;}
.clear{display:block;overflow:hidden;clear:both;height:0;line-height:0;font-size:0;}
body{font:12px/180% Arial, Helvetica, sans-serif;}
.demo{width:600px;margin:20px auto;border:solid 1px #ddd;padding:0 10px;}
.ranklist{height:200px;overflow:hidden;}
.ranklist li{height:16px;line-height:16px;overflow:hidden;position:relative;padding:0 70px 0 30px;margin:0 0 10px 0;}
.ranklist li em{background:url(images/mun.gif) no-repeat;width:20px;height:16px;overflow:hidden;display:block;position:absolute;left:0;top:0;text-align:center;font-style:normal;color:#333;}
.ranklist li em{background-position:0 -16px;}
.ranklist li.top em{background-position:0 0;color:#fff;}
.ranklist li .num{position:absolute;right:0;top:0;color:#999;}
</style>
<div class="demo">
<h2>jquery上下无缝滚动插件 列表溢出高度时 自动上下无缝滚动</h2>
<div class="ranklist">
<ul style="margin-top: -22px;">
<li>
<em>09</em><p><a href="http://www.17sucai.com/" target="_blank">FlippingBook电子杂志书去版权,翻页图片全部外调 站长珍藏版</a></p><span class="num">32万下载</span>
</li>
<li>
<em>10</em><p><a href="http://www.17sucai.com/" target="_blank">门户网站jquery广告控制flash或图片顶部广告显示隐藏</a></p><span class="num">32万下载</span>
</li>
<li class="top">
<em>01</em><p><a href="http://www.17sucai.com/" target="_blank">js图片左右无缝滚动用鼠标控制图片滚动</a></p><span class="num">32万下载</span>
</li>
<li class="top">
<em>02</em><p><a href="http://www.17sucai.com/" target="_blank">js无缝滚动制作js文字无缝滚动和js图片无缝滚动</a></p><span class="num">32万下载</span>
</li>
<li class="top">
<em>03</em><p><a href="http://www.17sucai.com/" target="_blank">jquery 滚动 kxbdSuperMarquee插件支持图片与文字无缝滚动 图片翻滚 焦点图左右切换 banner广告制作</a></p><span class="num">32万下载</span>
</li>
<li>
<em>04</em><p><a href="http://www.17sucai.com/" target="_blank">javascript滚动图片插件支持单排图片上下滚动、图片无缝滚动</a></p><span class="num">32万下载</span>
</li>
<li>
<em>05</em><p><a href="http://www.17sucai.com/" target="_blank"> javascript滚动图片带按钮控制上下左右自动无缝滚动</a></p><span class="num">32万下载</span>
</li>
<li>
<em>06</em><p><a href="http://www.17sucai.com/" target="_blank">jquery hover图片插件制作鼠标滑过标题单个展开图片效果</a></p><span class="num">32万下载</span>
</li>
<li>
<em>07</em><p><a href="http://www.17sucai.com/" target="_blank">flash图片特效3D立体动画焦点图片切换带左右按钮控制滚动</a></p><span class="num">32万下载</span>
</li>
<li>
<em>08</em><p><a href="http://www.17sucai.com/" target="_blank">js lazyload实现网页图片延迟加载特效</a></p><span class="num">32万下载</span>
</li>
</ul>
</div>
</div>
js代码
(function($){
$.fn.myScroll = function(options){
//默认配置
var defaults = {
speed:60, //滚动速度,值越大速度越慢
rowHeight:24 //每行的高度
};
var opts = $.extend({}, defaults, options),intId = [];
var hh = this.find("ul");
var hh2 = this.find("li");
//alert(hh.length);
//alert(hh2.length);
function marquee(obj, step){
obj.find("ul").animate({
marginTop: '-=1'
},0,function(){
var s = Math.abs(parseInt($(this).css("margin-top")));
if(s >= step){
$(this).find("li").slice(0, 1).appendTo($(this));
$(this).css("margin-top", 0);
}
});
}
this.each(function(i){
var sh = opts["rowHeight"],speed = opts["speed"],_this = $(this);
intId[i] = setInterval(function(){
alert("_this.find('ul').height()======="+_this.find("ul").height());
alert("_this.length ======== "+_this.length);
if( 250 <=_this.height()){
alert(1);
clearInterval(intId[i]);
}else{
alert(2);
marquee(_this, sh);
}
}, speed);
_this.hover(function(){
clearInterval(intId[i]);
},function(){
intId[i] = setInterval(function(){
if(_this.find("ul").height()<=_this.height()){
clearInterval(intId[i]);
}else{
marquee(_this, sh);
}
}, speed);
});
});
}
})(jQuery);
$(function(){
$("div.ranklist").myScroll({
speed:80,
rowHeight:24
});
});