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Alternative accordion effect web page content switching code implemented by JS_javascript skills

WBOY
WBOYOriginal
2016-05-16 15:40:111706browse

The example in this article describes the alternative accordion effect web page content switching code implemented by JS. Share it with everyone for your reference. The details are as follows:

This is an alternative accordion effect based on One Piece. It uses three background images. Please follow the code to download it. See more writing ideas for similar special effects. It will help improve your JS programming level. helpful.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/js-sfq-web-cha-style-codes/

The specific code is as follows: 

<!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>海贼王</title>
<style type="text/css">
body{margin:0px;padding:0px;overflow:hidden;background:#151515;}
#box{width:710px;height:350px;padding:2px 0 2px 2px;margin:210px auto;background:#111;}
#box ul{margin:0px;padding:0px;float:left;}
#box li{width:75px;height:350px;float:left;display:inline;margin-right:2px;overflow:hidden;list-style-type:none;position:relative;}
.pos1, .pos2, .pos3, .pos4, .pos5{width:75px;height:350px;float:left;text-decoration:none;}
.pos1 span, .pos2 span, .pos3 span, .pos4 span, .pos5 span{width:75px;height:350px;float:left;top:0px;left:0px;filter:alpha(opacity=10);opacity:0.1;overflow:hidden;position:absolute; text-decoration:none;}
.pos1 span.preview{background:url(images/bw.jpg) no-repeat;}
.pos1 span.img_pre{left:75px;background:url(images/color.jpg) no-repeat;}
.pos2 span.preview{background:url(images/bw.jpg) no-repeat -75px 0;}
.pos2 span.img_pre{left:75px;background:url(images/color.jpg) no-repeat -75px 0;}
.pos3 span.preview{background:url(images/bw.jpg) no-repeat -152px 0;}
.pos3 span.img_pre{left:75px;filter:alpha(opacity=100);opacity:1;background:url(images/color.jpg) no-repeat -152px 0;}
.pos4 span.preview{background:url(images/bw.jpg) no-repeat -228px 0;}
.pos4 span.img_pre{left:75px;background:url(images/color.jpg) no-repeat -228px 0;}
.pos5 span.preview{background:url(images/bw.jpg) no-repeat -303px 0;}
.pos5 span.img_pre{left:75px;background:url(images/color.jpg) no-repeat -303px 0;}
.inner {width:280px;height:310px;float:left;padding:20px;background:#fff;overflow:hidden;border-right:5px solid #f0f0f0; position:absolute;top:0px;left:75px;}
.inner h2{width:280px;height:60px;float:left;color:#555555;font-family:"微软雅黑";line-height:60px;font-size:18px;text-indent:10px;margin:0px;padding:0px;background:url(images/stripe_light.gif);}
.inner h3{width:280px;height:40px;float:left;color:#fff;font-family:"微软雅黑";line-height:40px;font-size:14px;text-indent:10px;margin:0px;padding:0px;background:url(images/stripe.gif);}
.inner p{width:260px;height:200px;float:left;color:#000;font-family:"微软雅黑";line-height:25px;font-size:12px;margin:0px;padding:0px 10px;}
</style>
<script type="text/javascript">
window.onload = function(){
 var oBox = document.getElementById('box');
 var aLi = oBox.getElementsByTagName('li');
 var aA = oBox.getElementsByTagName('a');
 var aPrev = getClass(oBox, 'preview');
 var aImg = getClass(oBox, 'img_pre');
 var i = 0;
 for(i=0;i<aA.length;i++){
  aA[i].index = i;
  aA[i].onclick = function(){
   for(i=0;i<aLi.length;i++){
    if(aLi[this.index].style.width != '400px')startMove(aLi[i], {width:75}, 5);
    startMove(aPrev[i], {opacity:10}, 5);
    startMove(aImg[i], {opacity:0, left:75}, 5);
   }
   if(aLi[this.index].style.width != '400px'){
    startMove(oBox, {width:710}, 5);
    startMove(aImg[this.index], {opacity:100, left:0}, 5);
    startMove(aLi[this.index], {width:400}, 5);
   }else{
    startMove(aLi[this.index], {width:75}, 5);
    for(i=0;i<aLi.length;i++){
     startMove(aPrev[i], {opacity:100}, 5);
    }
    startMove(oBox, {width:385}, 5);
   }
  };
 }
};
function getClass(oParent, sClass){
 var aElem = oParent.getElementsByTagName('*');
 var aClass = [];
 var i = 0;
 for(i=0;i<aElem.length;i++)if(aElem[i].className == sClass)aClass.push(aElem[i]);
 return aClass;
}
function startMove(obj, json, iT, fnEnd){
 if(obj.timer)clearInterval(obj.timer);
 obj.timer = setInterval(function (){
  doMove(obj, json, iT, fnEnd);
 }, 30);
}
function getStyle(obj, attr){
 return obj.currentStyle &#63; obj.currentStyle[attr] : getComputedStyle(obj, false)[attr];
}
function doMove(obj, json, iT, fnEnd){
 var iCur = 0;
 var attr = '';
 var bStop = true;
 for(attr in json){
  attr == 'opacity' &#63; iCur = parseInt(100*parseFloat(getStyle(obj, 'opacity'))) : iCur = parseInt(getStyle(obj, attr));
  if(isNaN(iCur))iCur = 0;
  var iSpeed = (json[attr]-iCur) / iT;
  iSpeed = iSpeed > 0 &#63; Math.ceil(iSpeed) : Math.floor(iSpeed);
  if(parseInt(json[attr])!=iCur)bStop = false;
  if(attr=='opacity'){
   obj.style.filter = "alpha(opacity:"+(iCur+iSpeed)+")";
   obj.style.opacity = (iCur + iSpeed) / 100;
  }else{
   attr == 'zIndex' &#63; obj.style[attr] = iCur + iSpeed : obj.style[attr] = iCur + iSpeed +'px';
  }
 }
 if(bStop){
  clearInterval(obj.timer);
  obj.timer = null;  
  if(fnEnd)fnEnd();
 }
}
</script>
</head>
<body>
<div id="box">
 <li>
  <a href="javascript:;" class="pos1">
  <span class="preview"></span>
  <span class="img_pre"></span>
 </a>
 <div class="inner">
  <h2>乌索普</h2>
  <h3>草帽海贼团【狙击手】</h3>
  <p>悬赏：3000万（司法岛事件）</p>
 </div>
 </li>
 <li>
  <a href="javascript:;" class="pos2">
  <span class="preview"></span>
  <span class="img_pre"></span>
 </a>
 <div class="inner">
  <h2>罗罗诺亚·索隆</h2>
  <h3>草帽海贼团【剑士】</h3>
  <p>悬赏：6千万（阿拉巴斯坦事件）→1亿2000万（司法岛事件）</p>
 </div>
 </li>
 <li style="width:400px;">
  <a href="javascript:;" class="pos3">
  <span class="preview"></span>
  <span class="img_pre" style="left:0px;"></span>
 </a>
 <div class="inner">
  <h2>蒙其·D·路飞</h2>
  <h3>草帽海贼团【船长】</h3>
  <p>恶魔果实：橡胶果实<br />悬赏：3千万（可可亚西村事件）→1亿（阿拉巴斯坦事件）→3亿（司法岛事件)→4亿（顶上战争后）</p>
 </div>
 </li>
 <li>
  <a href="javascript:;" class="pos4">
  <span class="preview"></span>
  <span class="img_pre"></span>
 </a>
 <div class="inner">
  <h2>娜美</h2>
  <h3>草帽海贼团【航海士】</h3>
  <p>悬赏：1600万（司法岛事件）</p>
 </div>
 </li>
 <li>
  <a href="javascript:;" class="pos5">
  <span class="preview"></span>
  <span class="img_pre"></span>
 </a>
 <div class="inner">
  <h2>香吉士</h2>
  <h3>草帽海贼团【厨师】</h3>
  <p>悬赏：7700万（司法岛事件）</p>
 </div>
 </li>
</div>
</body>
</html>

I hope this article will be helpful to everyone’s JavaScript programming.

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