兼容ie和火狐的js无缝八向滚动特效代码

"-//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=gb2312" />
<title>JavaScript 无缝八向滚动(兼容ie/ff)</title>
</head>
<body>
<script type="text/javascript">
var $ = function (id) {
return "string" == typeof id ? document.getElementById(id) : id;
};

var Class = {
create: function() {
return function() {
this.initialize.apply(this, arguments);
}
}
}

Object.extend = function(destination, source) {
for (var property in source) {
destination[property] = source[property];
}
return destination;
}

function addEventHandler(oTarget, sEventType, fnHandler) {
if (oTarget.addEventListener) {
oTarget.addEventListener(sEventType, fnHandler, false);
} else if (oTarget.attachEvent) {
oTarget.attachEvent("on" + sEventType, fnHandler);
} else {
oTarget["on" + sEventType] = fnHandler;
}
};

var Scroller = Class.create();
Scroller.prototype = {
initialize: function(idScroller, idScrollMid, options) {
var oScroll = this, oScroller = $(idScroller), oScrollMid = $(idScrollMid);

this.SetOptions(options);
this.scroller = oScroller; //对象
this.timer = null; //时间
this.Side = []; //方向
this.side = 0; //参数

//方向设置
switch (this.options.Side.toLowerCase()) {
case "right-down" :
this.Side = ["right", "down"];
break;
case "right-up" :
this.Side = ["right", "up"];
break;
case "left-down" :
this.Side = ["left", "down"];
break;
case "left-up" :
this.Side = ["left", "up"];
break;
case "right" :
this.Side = ["right"];
break;
case "left" :
this.Side = ["left"];
break;
case "down" :
this.Side = ["down"];
break;
case "up" :
default :
this.Side = ["up"];
}

//用于上下滚动
this.heightScroller = parseInt(oScroller.style.height) || oScroller.offsetHeight;
this.heightList = oScrollMid.offsetHeight;

//用于左右滚动
this.widthScroller = parseInt(oScroller.style.width) || oScroller.offsetWidth;
this.widthList = oScrollMid.offsetWidth;

//js取不到css设置的height和width

oScroller.style.overflow = "hidden";
oScrollMid.appendChild(oScrollMid.cloneNode(true));
oScrollMid.appendChild(oScrollMid.cloneNode(true));

addEventHandler(oScroller, "mouseover", function() { oScroll.Stop(); });
addEventHandler(oScroller, "mouseout", function() { oScroll.Start(); });

this.Start();
},
//设置默认属性
SetOptions: function(options) {
this.options = {//默认值
Step: 1,//每次变化的px量
Speed: 20,//速度(越大越慢)
Side: "up"//滚动方向:"up"是上，"down"是下，"left"是左，"right"是右
};
Object.extend(this.options, options || {});
},
//上下滚动
ScrollUpDown: function() {
this.scroller.scrollTop = this.GetScroll(this.scroller.scrollTop, this.heightScroller, this.heightList);

var oThis = this;
this.timer = window.setTimeout(function(){ oThis.Start(); }, this.options.Speed);
},
//左右滚动
ScrollLeftRight: function() {
//注意:scrollLeft超过1400会自动变回1400 注意长度
this.scroller.scrollLeft = this.GetScroll(this.scroller.scrollLeft, this.widthScroller, this.widthList);

var oThis = this;
this.timer = window.setTimeout(function(){ oThis.Start(); }, this.options.Speed);
},
//获取设置滚动数据
GetScroll: function(iScroll, iScroller, iList) {
if(this.side > 0){
if(iScroll >= (iList * 2 - iScroller)){ iScroll -= iList; }
} else {
if(iScroll <= 0){ iScroll += iList; }
}

return (iScroll + this.options.Step * this.side);
},
//开始
Start: function() {

this.Side.push(this.Side.shift().toLowerCase());

//document.getElementById("test").innerHTML+=s+",";

//方向设置
switch (this.Side[0].toLowerCase()) {
case "right" :
if(this.widthList < this.widthScroller) return;
this.side = -1;
this.ScrollLeftRight();
break;
case "left" :
if(this.widthList < this.widthScroller) return;
this.side = 1;
this.ScrollLeftRight();
break;
case "down" :
if(this.heightList < this.heightScroller) return;
this.side = -1;
this.ScrollUpDown();
break;
case "up" :
default :
if(this.heightList < this.heightScroller) return;
this.side = 1;
this.ScrollUpDown();
}
},
//停止
Stop: function() {
clearTimeout(this.timer);
}
};

window.onload = function(){
new Scroller("idScroller", "idScrollMid",{ Side:"left-down" });
new Scroller("idScroller1", "idScrollMid1",{ Side:"left-up" });
new Scroller("idScroller2", "idScrollMid2",{ Side:"right-down" });
new Scroller("idScroller3", "idScrollMid3",{ Side:"right-up" });

new Scroller("idScroller4", "idScrollMid4",{ Side:"left-up" });
new Scroller("idScroller5", "idScrollMid5",{ Side:"right-up" });
new Scroller("idScroller6", "idScrollMid6",{ Side:"left-down" });
new Scroller("idScroller7", "idScrollMid7",{ Side:"right-down" });

new Scroller("idScroller8", "idScrollMid8",{ Side:"right-down" });
new Scroller("idScroller9", "idScrollMid9",{ Side:"left-down" });
new Scroller("idScroller10", "idScrollMid10",{ Side:"right-up" });
new Scroller("idScroller11", "idScrollMid11",{ Side:"left-up" });
}
</script>
<style>
*{}{margin:0px; padding:0px;}

.Scroller {}{line-height:50px;overflow:hidden; border:1px solid #000000;}
.ScrollMid {}{float:left;}
.ScrollMid ul{}{width:250px;float:left;overflow:hidden;}
.ScrollMid li{}{list-style:none;}

.Scroller2 {}{overflow:hidden;float:left;}
.ScrollMid2 {}{float:left;}
.ScrollMid2 ul{}{width:100px;height:100px;float:left;overflow:hidden;}
.ScrollMid2 li{}{list-style:none; width:100px; height:100px;}
</style>
<div id="idScroller" class="Scroller" style="width:250px; height:50px;">
<div style="width:500px">
<div id="idScrollMid" class="ScrollMid">
<ul>
<li> <a href="http://shundebk.cn/">1111111111111111111111</a></li>
</ul>
</div>
</div>
</div>
<br />
<br />
<div id="idScroller1" class="Scroller" style="width:250px; height:50px;">
<div style="width:500px">
<div id="idScrollMid1" class="ScrollMid">
<ul>
<li> <a href="http://shundebk.cn/">1111111111111111111111</a></li>
</ul>
</div>
</div>
</div>
<br />
<br />
<div id="idScroller2" class="Scroller" style="width:250px; height:50px;">
<div style="width:500px">
<div id="idScrollMid2" class="ScrollMid">
<ul>
<li> <a href="http://shundebk.cn/">1111111111111111111111</a></li>
</ul>
</div>
</div>
</div>
<br />
<br />
<div id="idScroller3" class="Scroller" style="width:250px; height:50px;">
<div style="width:500px">
<div id="idScrollMid3" class="ScrollMid">
<ul>
<li> <a href="http://shundebk.cn/">1111111111111111111111</a></li>
</ul>
</div>
</div>
</div>

<br /><br />

<div style="width:200px;">
<div id="idScroller4" class="Scroller2" style="width:100px; height:100px;">
<div style="width:200px">
<div id="idScrollMid4" class="ScrollMid2">
<ul>
<li style="background:url(1.gif);"> </li>
</ul>
</div>
</div>
</div>
<div id="idScroller5" class="Scroller2" style="width:100px; height:100px;">
<div style="width:200px">
<div id="idScrollMid5" class="ScrollMid2">
<ul>
<li style="background:url(2.gif);"> </li>
</ul>
</div>
</div>
</div>
<div id="idScroller6" class="Scroller2" style="width:100px; height:100px;">
<div style="width:200px">
<div id="idScrollMid6" class="ScrollMid2">
<ul>
<li style="background:url(2.gif);"> </li>
</ul>
</div>
</div>
</div>
<div id="idScroller7" class="Scroller2" style="width:100px; height:100px;">
<div style="width:200px">
<div id="idScrollMid7" class="ScrollMid2">
<ul>
<li style="background:url(1.gif);"> </li>
</ul>
</div>
</div>
</div>
</div>

<br /><br />
<div style="width:200px;">
<div id="idScroller8" class="Scroller2" style="width:100px; height:100px;">
<div style="width:200px">
<div id="idScrollMid8" class="ScrollMid2">
<ul>
<li style="background:url(2.gif);"> </li>
</ul>
</div>
</div>
</div>
<div id="idScroller9" class="Scroller2" style="width:100px; height:100px;">
<div style="width:200px">
<div id="idScrollMid9" class="ScrollMid2">
<ul>
<li style="background:url(1.gif);"> </li>
</ul>
</div>
</div>
</div>
<div id="idScroller10" class="Scroller2" style="width:100px; height:100px;">
<div style="width:200px">
<div id="idScrollMid10" class="ScrollMid2">
<ul>
<li style="background:url(1.gif);"> </li>
</ul>
</div>
</div>
</div>
<div id="idScroller11" class="Scroller2" style="width:100px; height:100px;">
<div style="width:200px">
<div id="idScrollMid11" class="ScrollMid2">
<ul>
<li style="background:url(2.gif);"> </li>
</ul>
</div>
</div>
</div>
</div>
<div id="test"></div>
</body>
</html>

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