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Javascript automatically plays slide effect code

Source: Internet
Author: User
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The code is as follows Copy Code

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 "/>
<title> Auto Playback-slide buffer effect </title>
<style>
body,div,ul,li{margin:0;padding:0;}
Ul{list-style-type:none;}
Body{background: #000; text-align:center;font:12px/20px Arial;
#box {position:relative;width:492px;height:172px;background: #fff; border-radius:5px;border:8px solid #fff; margin : 10px Auto;cursor:pointer;}
#box. List{position:relative;width:490px;height:170px;overflow:hidden;}
#box. List ul{position:absolute;top:0;left:0;}
#box. List Li{width:490px;height:170px;overflow:hidden;}
#box. count{position:absolute;right:0;bottom:5px;}
#box. Count Li{color: #fff; float:left;width:20px;height:20px;cursor:pointer;margin-right:5px;overflow:hidden; Background: #F90; Opacity:0.7;filter:alpha (opacity=70); border-radius:20px;}
#box. Count Li.current{color: #fff; Opacity:1;filter:alpha (opacity=100); Font-weight:700;background: #f60;}
#tmp {Width:100px;height:100px;background:red;position:absolute;}
</style>
<script type= "Text/javascript" >
Window.onload = function ()
{
var Obox = document.getElementById ("box");
var olist = obox.getelementsbytagname ("ul") [0];
var aimg = obox.getelementsbytagname ("img");
var timer = Playtimer = null;
var index = i = 0;
var bOrder = true;
var aTmp = [];
var abtn = null;

Generate a number button
for (i = 0; i < aimg.length i++) Atmp.push ("<li>" + (i + 1) + "</li>");

inserting elements
var ocount = document.createelement ("ul");
Ocount.classname = "Count";
ocount.innerhtml = Atmp.join ("");
Obox.appendchild (Ocount);
ABTN = Obox.getelementsbytagname ("ul") [1].getelementsbytagname ("Li");

Initialization status
Cutover ();

button click to toggle
for (i = 0; i < abtn.length; i++)
{
Abtn[i].index = i;
Abtn[i].onmouseover = function ()
{
index = This.index;
Cutover ()
}
}

function cutover ()
{
for (i = 0; i < abtn.length i++) Abtn[i].classname = "";
Abtn[index].classname = "current";
Startmove (-(Index * aimg[0].offsetheight))
}

function Next ()
{
BOrder? index++: index--;
Index <= 0 && (index = 0, BOrder = true);
Index >= abtn.length-1 && (index = abtn.length-1, BOrder = False)
Cutover ()
}

Playtimer = SetInterval (Next, 3000);

Mouse move into the display area to stop AutoPlay
Obox.onmouseover = function ()
{
Clearinterval (Playtimer)
};

The mouse leaves the display area to start playing automatically
Obox.onmouseout = function ()
{
Playtimer = SetInterval (Next, 3000)
};
function Startmove (itarget)
{
Clearinterval (timer);
Timer = setinterval (function ()
{
Domove (ITarget)
}, 30)
}
function Domove (itarget)
{
var ispeed = (itarget-olist.offsettop)/10;
Ispeed = ispeed > 0? Math.ceil (ispeed): Math.floor (Ispeed);
Olist.offsettop = = ITarget? Clearinterval (timer): OList.style.top = olist.offsettop + ispeed + "px"
}
};
</script>
<body>
<div id= "box" >
<div class= "List" >
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
</div>
</div>
</body>

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