JS实现响应鼠标点击动画渐变弹出层效果代码

本文实例讲述了JS实现响应鼠标点击动画渐变弹出层效果。分享给大家供大家参考，具体如下：

<!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>动画弹出层</title>
<style>
.list{
 position:relative;;
 background:#eee;
 border:1px #ccc solid;
 margin:10px;
 height:30px;
 width:100px;
 cursor :pointer ;
}
.listShow{
 position:relative;
 background:#eff;
 border:1px #ddd solid;
 margin:10px;
 height:30px;
 width:100px;
 cursor :pointer ;
}
.comment{
 position:absolute;
 left:0;
 display:none;
 position:absolute;
 border:1px #ccc solid;
 background:#fee;
 width:200px;
 height:200px;
 overflow:hidden;
 z-index:100;
}
</style>
</head>
<body>
<div class="" id="show">
0
</div>
<div class="list" id="list1">1
 <div class="comment" id="comment1">我们<br/>
</div>
<div class="list" id="list2">2
 <div class="comment" id="comment2">新浪搜狐</div>
</div>
<div class="list" id="list3">3
 <div class="comment" id="comment3">网页特效</div>
</div>
</body>
</html>
<script>
 var zindex=0;
 function $id(id){
 return document.getElementById(id);
 }
 var Bind = function(object,fun){
 var args = Array.prototype.slice.call(arguments).slice(2);
 return function(){
  return fun.apply(object,args);
 }
 }
 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 Shower=function(){
 this.list=null;
 this.comment=null;
 this.moveLeft=80;
 this.moveTop=20;
 this.height=150;
 this.width=250;
 this.time=800;
 this.init=function(lisObj,comObj){
  this.list=lisObj;
  this.comment=comObj;
  var _this=this;
  this._fnMove=Bind(this,this.move);
  (function(){
  var obj=_this;
  addEventHandler(obj.list,"click",obj._fnMove);
  })();
 };
 this.move=function(){
  var _this=this;
  var w=0;
  var h=0;
  var height=0; //弹出div的高
  var width=0; //弹出div的宽
  var t=0;
  var startTime = new Date().getTime();//开始执行的时间
  if(!_this.comment.style.display||_this.comment.style.display=="none"){
   _this.comment.style.display="block";
   _this.comment.style.height=0+"px";
   _this.comment.style.width=0+"px";
   _this.list.style.zIndex=++zindex;
   _this.list.className="listShow";
   var comment=_this.comment.innerHTML;
   _this.comment.innerHTML=""; //去掉显示内容
   var timer=setInterval(function(){
   var newTime = new Date().getTime();
   var timestamp = newTime - startTime;
   _this.comment.style.left=Math.ceil(w)+"px";
   _this.comment.style.top=Math.ceil(h)+"px";
   _this.comment.style.height=height+"px";
   _this.comment.style.width=width+"px";
   t++;
  var change=(Math.pow((timestamp/_this.time-1), 3) +1); //根据运行时间得到基础变化量
   w=_this.moveLeft*change;
   h=_this.moveTop*change;
   height=_this.height*change;
   width=_this.width*change;
   $id("show").innerHTML=w;
    if(w>_this.moveLeft){
clearInterval(timer);
_this.comment.style.left=_this.moveLeft+"px";
_this.comment.style.top=_this.moveTop+"px";
_this.comment.style.height=_this.height+"px";
_this.comment.style.width=_this.width+"px";
_this.comment.innerHTML=comment; //回复显示内容
}
},1,_this.comment);
  }else{
   _this.hidden();
  }
}
this.hidden=function(){
 var _this=this;
 var flag=1;
 var hiddenTimer=setInterval(function(){
 if(flag==1){
 _this.comment.style.height=parseInt(_this.comment.style.height)-10+"px";
 }else{    _this.comment.style.width=parseInt(_this.comment.style.width)-15+"px";
 _this.comment.style.left=parseInt(_this.comment.style.left)+5+"px";
 }
 if(flag==1 && parseInt(_this.comment.style.height)<10){
 flag=-flag;
 }
   if(parseInt(_this.comment.style.width)<20){
    clearInterval(hiddenTimer);
    _this.comment.style.left="0px";
    _this.comment.style.top="0px";
    _this.comment.style.height="0px";
    _this.comment.style.width="0px";
    _this.comment.style.display="none";
    if(_this.list.style.zIndex==zindex){
    zindex--;
    };
    _this.list.style.zIndex=0;
    _this.list.className="list";
   }
  },1)
 }
 }
 window.onload=function(){
 //建立各个菜单对象
 var shower1=new Shower();
 shower1.init($id("list1"),$id("comment1"));
 var shower2=new Shower();
 shower2.init($id("list2"),$id("comment2"));
 var shower3=new Shower();
 shower3.init($id("list3"),$id("comment3"));
 }
</script>

更多关于JavaScript相关内容感兴趣的读者可查看本站专题：《JavaScript查找算法技巧总结》、《JavaScript动画特效与技巧汇总》、《JavaScript错误与调试技巧总结》、《JavaScript数据结构与算法技巧总结》、《JavaScript遍历算法与技巧总结》及《JavaScript数学运算用法总结》

希望本文所述对大家JavaScript程序设计有所帮助。