html
<!DOCTYPE html>
<html><head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta http-equiv="Content-Type" content="text/html; charset=uft-8">
<meta name="keywords" content="">
<meta name="description" content="">
<script src="js/jquery.js" type="text/javascript"></script>
<title></title>
<base target="_blank">
</head><body>
<div class="overRandom">
<div class="oRunit">
<a href="#">
<img src="http://dimgcn2.s-msn.com/imageadapter/w150/wscont2.apps.microsoft.com/winstore//1x/7fb16910-2148-4bb6-b91c-4b517e9da4be/AppTile.1.277209.278332.png">
<div class="oRuContent"></div>
</a>
</div><div class="oRunit">
<a href="#">
<img src="http://dimgcn4.s-msn.com/imageadapter/w150/wscont2.apps.microsoft.com/winstore//1x/34c7cefc-e358-4d2e-bd5a-32669052108b/AppTile.1.102582.107518.png">
<div class="oRuContent"></div>
</a>
</div><div class="oRunit">
<a href="#">
<img src="http://dimgcn4.s-msn.com/imageadapter/w150/wscont2.apps.microsoft.com/winstore//1x/02b665ae-5c18-4292-994a-c445f6861ee8/AppTile.1.267086.268135.png">
<div class="oRuContent"></div>
</a>
</div>
</div>
<div class="overRandom1">
<div class="oRunit">
<a href="#">
<img src="http://dimgcn2.s-msn.com/imageadapter/w150/wscont2.apps.microsoft.com/winstore//1x/7fb16910-2148-4bb6-b91c-4b517e9da4be/AppTile.1.277209.278332.png">
<div class="oRuContent"></div>
</a>
</div><div class="oRunit">
<a href="#">
<img src="http://dimgcn4.s-msn.com/imageadapter/w150/wscont2.apps.microsoft.com/winstore//1x/34c7cefc-e358-4d2e-bd5a-32669052108b/AppTile.1.102582.107518.png">
<div class="oRuContent"></div>
</a>
</div>
</div><div class="overRandom2">
<div class="oRunit">
<a href="#">
<img src="http://dimgcn2.s-msn.com/imageadapter/w150/wscont2.apps.microsoft.com/winstore//1x/7fb16910-2148-4bb6-b91c-4b517e9da4be/AppTile.1.277209.278332.png">
<div class="oRuContent"></div>
</a>
</div><div class="oRunit">
<a href="#">
<img src="http://dimgcn4.s-msn.com/imageadapter/w150/wscont2.apps.microsoft.com/winstore//1x/02b665ae-5c18-4292-994a-c445f6861ee8/AppTile.1.267086.268135.png">
<div class="oRuContent"></div>
</a>
</div><div class="oRunit">
<a href="#">
<img src="http://dimgcn4.s-msn.com/imageadapter/w150/wscont2.apps.microsoft.com/winstore//1x/34c7cefc-e358-4d2e-bd5a-32669052108b/AppTile.1.102582.107518.png">
<div class="oRuContent"></div>
</a>
</div>
</div></body>
</html>
css:
.overRandom, .overRandom1, .overRandom2 { width: 1000px; margin: 20px auto 0; padding-bottom: 20px; overflow: hidden; border-bottom: #7b337e dashed 2px;}
.oRunit { width: 100px; height: 100px; position: relative; margin:0 10px 0 0; _display:inline; float: left; background: #7b337e; overflow: hidden;}
.oRunit img { position: absolute; top: 0; left: 0; z-index: 100; width: 100%; height: 100%; display: block;}
.oRuContent { position: absolute; background: #7b337e; top: 100%; left: 0; z-index: 101; width: 100%; height: 100%;}
jquery:
(function($) {
$.fn.overRandom = function(config) {
var element = $(this);
var defaults = {
control: ‘.oRunit‘, //每个单元
controlCon: ‘.oRuContent‘, //每个单元上翻的层
upAllTime: 500, //滑过上翻时间
upRandomTime: 1000, //随机上翻时间
upoverHeight: 30 //随机上翻height
};
var config = $.extend(defaults, config);
var _unitLg = element.find(config.control).length;
function upoverFn() {
this.create();
this.randomFn();
element.find(config.control).mouseenter(this.elementNumOver).mouseleave(this.elementNumOut);
}
upoverFn.prototype.create = function() {
var that = this;
var num, t = 0;
that.elementNumOver = function() {
var _this = this;
num = $(this).index();
that.fnc = function() {
that.fn = setTimeout(function() {
t+=1;
that.fnc();
if(t>0) {
$(_this).find(config.controlCon).animate({top: 0});
}
}, config.upAllTime);
}
that.fnc();
}
that.elementNumOut = function() {
var _this = this;
t = 0;
clearTimeout(that.fn);
setTimeout(function() {
$(_this).find(config.controlCon).animate({top: ‘100%‘});
}, config.upAllTime)
}
}
upoverFn.prototype.randomFn = function() {
var that = this;
var _index = ‘‘;
function numFn() {
_index = parseInt(Math.random()*_unitLg);
function numberFn() {
_index = parseInt(Math.random()*_unitLg);
if (element.find(config.control).eq(_index).attr(‘data‘) == ‘1‘) {
numberFn();
}
}
numberFn();
element.find(config.control).removeAttr(‘data‘);
element.find(config.control).eq(_index).attr(‘data‘, 1);
}
function overFn() {
var overFnCss = {
top: $(config.control).outerHeight() - config.upoverHeight
}
element.find(config.control).eq(_index).find(config.controlCon).animate(overFnCss);
}
setInterval(function() {
element.find(config.control).eq(_index).find(config.controlCon).animate({top: ‘100%‘}, function() {
numFn();
overFn();
})
}, config.upRandomTime);
}
new upoverFn();
}
}(jQuery))
$(function() {
$(".overRandom").overRandom({
upRandomTime: 3000
});
$(".overRandom1").overRandom();
$(".overRandom2").overRandom();
})