上下滚动页面展示的特效演示新手级参考-JS特效-爱易网页

上下滚动页面展示的特效演示新手级参考

日期：2014-05-18　浏览次数：20180 次

以下是程序代码

<!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>无标题文档</title>
<style type="text/css">
*{
 margin:0;
 padding:0;
}
.page960{
 width:960px;
 margin:auto;
}
.mainDiv{
 width:960px;
 margin:auto;
}
.div_menu{
 float:left;
 display:inline;
 width:95px;
 border:1px solid #ccc;
 border-right:none;
 cursor:pointer;
}
.div_menu span{
 width:93px;
 height:60px;
 display:block;
 line-height:60px;
 text-align:center;
 margin:1px;
 background:#9FC;
}
.main_content{
 float:left;
 display:inline;
 width:860px;
 border:1px solid #ccc;
 height:800px;
 margin-bottom:12px;
}
</style>
</head>
<body>
<div class="page960" style="height:200px;">head</div>
<div class="mainDiv">
 <div class="div_menu">
     <span onclick="divMove(0)">1</span>
        <span onclick="divMove(1)">2</span>
        <span onclick="divMove(2)">3</span>
    </div>
    <div class="main_content">test1</div>
</div>
<div class="mainDiv">
 <div class="div_menu">
     <span onclick="divMove(0)">1</span>
        <span onclick="divMove(1)">2</span>
        <span onclick="divMove(2)">3</span>
    </div>
    <div class="main_content">test2</div>
</div>
<div class="mainDiv">
 <div class="div_menu">
     <span onclick="divMove(0)">1</span>
        <span onclick="divMove(1)">2</span>
        <span onclick="divMove(2)">3</span>
    </div>
    <div class="main_content">test3</div>
</div>
<script type="text/javascript">
var currentpos,timer;
var myDiv=new Array();
var j=0;
var k=0;
var n=0;
var timer=null;
var speed=0;
allDiv=document.getElementsByTagName("div");
/*假如是ie8或者是火狐*/
if(navigator.appVersion.indexOf("7.0")==-1&&navigator.appVersion.indexOf("6.0")==-1)
{
 for(j=0;j<allDiv.length;j++)
 {
  if(allDiv[j].className=="div_menu")
  {
   myDiv[n]=allDiv[j];
   n++;
  }
 }
}
else
{
 for(j=0;j<allDiv.length;j++)
 {
  if(allDiv[j].className=="mainDiv")
  {
   myDiv[n]=allDiv[j];
   n++;
  }
 }
}
function divMove(m)
{
 sc();
 //因为要符合标准页面包含了DOCTYPE所以用document.body.scrollTop无
 currentPos=document.documentElement.scrollTop;
 for(k in myDiv)
 {
  if(m==k)
  {
   myElement=myDiv[k];
   //window.scroll(0,myDiv[k].offsetTop);
  }
 }
 if(myElement.offsetTop>currentPos)
 {
  moveDown();
 }
 if(myElement.offsetTop<currentPos)
 {
  moveUp();
 }
}
//向下移动
function moveDown()
{ 
 timer=setInterval("scrollDown()",10);
}
function scrollDown() 
{
 if(Math.ceil(currentPos)>=myElement.offsetTop)
 {
  sc();
  timer=null;
  speed=0;
 }
 else
 {
  speed=(myElement.offsetTop-currentPos)/15;
  currentPos=currentPos+speed;
  window.scroll(0,currentPos);  
 }
}
//向上移动
function moveUp()
{ 
 timer=setInterval("scrollUp()",10);
} 
function scrollUp() 
{
 if(Math.round(currentPos)<=myElement.offsetTop)
 {
  sc();
  timer=null;
  speed=0;
 }
 else
 {
  speed=(myElement.offsetTop-currentPos)/15;
  currentPos=currentPos+speed;
  window.scroll(0,currentPos);  
 }
}
//停止移动
function sc(){
 clearInterval(timer); 
 timer=null;
}
</script>
</body&</div></div>

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上下滚动页面展示的特效演示 新手级参考

上下滚动页面展示的特效演示新手级参考