JS控制对象移动效果
2010-09-14 13:28:40 来源：WEB开发网运行可以看到效果
<!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=gb2312" />
<title>活动的展示窗</title>
<style type="text/css">
#box{width:500px;height:120px;border:#00FF00 10px ridge;overflow:hidden}
.bigbox{overflow:hidden;}
.smallbox{width:auto!important width:140px;min-width:140px;height:100px;border:#FFFF00 8px ridge;float:left;display:inline;overflow:visible;}
</style>
<script language="javascript" type="text/javascript">
var box,scrollIndex=0,sbArr=new Array();
function $(id){return document.getElementById(id)}
window.xywxff=function(){
box=$("box");
var bb=box.firstChild;
var tmp=bb.getElementsByTagName("div");
var allWidth=0;
for (var n=0;n<tmp.length;n++){
if(tmp[n].className=="smallbox"){
sbArr.push(tmp[n]);
sbArr[sbArr.length-1].scrollFlag=allWidth;
allWidth=allWidth+sbArr[sbArr.length-1].offsetWidth;
}
}
resize(bb);
}
function resize(o){
var width=0,height=0;
for (var n=0;n<sbArr.length;n++){
width=width+sbArr[n].offsetWidth;
if (sbArr[n].offsetHeight>height) height=sbArr[n].offsetHeight;
}
o.style.width=width+"px";
o.style.height=height+"px";
}
function goPrevious(){
if (--scrollIndex<0) scrollIndex=0;
moveBox(sbArr[scrollIndex].scrollFlag);
}
function goNext(){
if (sbArr[scrollIndex+1].scrollFlag>=box.scrollWidth-box.clientWidth){
moveBox(box.scrollWidth-box.clientWidth);
if (box.scrollLeft!=box.scrollWidth-box.clientWidth) ++scrollIndex;
}else{
if (++scrollIndex>sbArr.length-1) scrollIndex=sbArr.length-1;
moveBox(sbArr[scrollIndex].scrollFlag);
}
}
function moveBox(scrollFlag){
clearTimeout(box.getAttribute("ta"));
if (Math.abs(scrollFlag-box.scrollLeft)<1){
box.scrollLeft=scrollFlag;
}else{
var ta=parseInt((scrollFlag-box.scrollLeft)/8+1);
if (Math.abs(ta)<0.5) ta=ta>0?0.5:-0.5;
box.scrollLeft=box.scrollLeft+ta;
box.setAttribute("ta",setTimeout(function(){moveBox(scrollFlag)},10));
}
}
</script>
</head>
<body>
<div id="box"><div class="bigbox">
<div class="smallbox">content1</div>
<div class="smallbox">content2</div>
<div class="smallbox">content3</div>
<div class="smallbox">content4</div>
<div class="smallbox">content5</div>
<div class="smallbox">content6</div>
<div class="smallbox">content7</div>
<div class="smallbox">content8</div>
<div class="smallbox">content9</div>
</div></div>
<a onclick="goPrevious()" href="javascript:">左移</a>
<a onclick="goNext()" href="javascript:">右移</a>
</body>
</html>
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