jquery左右滑动效果的实现

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jquery左右滑动效果的实现</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$("#bta").click(function () {
$("#unit").css("left", "300px");
document.getElementById("unit").style.left = "300px";
// var container = document.getElementById("unit");
// try {
// container.insertBefore(container.lastChild, container.firstChild)
// }
// catch (e) { alert(e); }
$("#unit").prepend($("#unit>div:last"));
$("#unit").animate({ "left": 0 }, 500);
//$("#unit").stop(true, false).animate({ "left": 0 }, 500); });
$("#btb").click(function () {
$("#unit").animate({ "left": -300 }, 500);
//$("#unit").stop(true, false).animate({ "left": -300 }, 500); function gundong() {
$("#unit").css("left", "0px");
//document.getElementById("unit").style.left = "0px";
$("#unit").append($("#unit>div:first"));
// var container = document.getElementById("unit");
// try {
// container.appendChild(container.firstChild);
// }
// catch (e) { alert(e); }
}//等待动画滚动后执行
setTimeout(function () { gundong() }, 700);
})
}); </script>
<style type="text/css">
*
{
padding: 0;
margin: 0;
}
#box
{
width: 300px;
height: 150px;
margin-bottom: 50px;
position: relative;
overflow: hidden;
}
#unit
{
width: 1200px;
position: absolute;
}
#unit div
{
float: left;
width: 300px;
height: 150px;
}
#bga
{
background-color: #F30;
}
#bgb
{
background-color: #F90;
}
#bta, #btb
{
float: left;
width: 50px;
padding-right: 50px;
color: #FFF;
cursor: pointer;
}
</style>
</head>
<body>
<div style="width: 800px; height: 300px; padding-top: 100px; background-color: #999;
margin: 0 auto;">
<div id="box">
<div id="unit">
<div id="bga">
框一</div>
<div id="bgb">
框二</div>
<div id="bgc">
框三</div>
<div id="bgd">
框四</div>
</div>
</div>
<div id="bta">
左</div>
<div id="btb">
右</div>
</div>
</body>
</html>
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