js之选项卡2

DOCTYPE HTML>
html>
head>
meta charset="utf-8">
title>无标题文档title>
style>
#div1 .active {background:yellow;}
#div1 div {width:200px; height:200px; background:#CCC; border:1px solid #999; display:none;}
style>
script>
window.onload=function ()
{
    var oDiv=document.getElementById(‘div1‘);  //获取id为div1的元素
    var aBtn=oDiv.getElementsByTagName(‘input‘);
    var aDiv=oDiv.getElementsByTagName(‘div‘);
    
    for(var i=0;iaBtn.length;i++)
    {
        aBtn[i].index=i;   //input元素的索引值设为i
        aBtn[i].onclick=function ()
        {
            for(var i=0;iaBtn.length;i++)   //将所有input的样式清空
            {
                aBtn[i].className=‘‘;
                aDiv[i].style.display=‘none‘;
            }
            this.className=‘active‘;    //将选择的元素添加class
            //alert(this.index);
            aDiv[this.index].style.display=‘block‘;   //将选择项相应的div元素显示出来
        };
    }
};
script>
head>

body>
div id="div1">
    input class="active" type="button" value="教育" />
    input type="button" value="培训" />
    input type="button" value="招生" />
    input type="button" value="出国" />
    div style="display:block;">1111div>
    div>2222div>
    div>333div>
    div>4444div>
div>
body>
html>