多种用户注册界面设计方法

使用多个div，通过div的隐藏和显示来实现
当点击按钮一时，显示div1,隐藏div2和div3....，当点击按钮2时，显示div2,隐藏div1和div3....,以此类推
<!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>TAB切换效果</title>


<body > 
     <input type="radio" id="btn1" name="btn" value="btn1" />btn1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
     <input type="radio" id="btn2" name="btn" value="btn2" />btn2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
     <input type="radio" id="btn3" name="btn" value="btn3" />btn3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
     <div style ="100px; height:100px; background:red; display:block; "  id ="div1"> div1</div>
     <div style ="100px; height:100px; background:yellow; display:none;" id ="div2">  div2</div>
     <div style ="100px; height:100px; background:blue; display:none;" id ="div3">  div3</div>
     </body> 
     <script>
       var oBtn1 = document.getElementById('btn1');
       var oBtn2 = document.getElementById('btn2');
       var oBtn3 = document.getElementById('btn3');
       var oDiv1 = document.getElementById('div1');
       var oDiv2 = document.getElementById('div2');
       var oDiv3 = document.getElementById('div3');
       oBtn1.onclick = function(){
           if(oDiv1.style.display == 'none'){
               oDiv1.style.display = 'block';
               oDiv2.style.display = 'none';
               oDiv3.style.display = 'none';
           }else{
               
           }
       };
       oBtn2.onclick = function(){
           if(oDiv2.style.display == 'none'){
               oDiv1.style.display = 'none';
               oDiv2.style.display = 'block';
               oDiv3.style.display = 'none';
           }else{
               
           }
       };
       oBtn3.onclick = function(){
           if(oDiv3.style.display == 'none'){
               oDiv1.style.display = 'none';
               oDiv2.style.display = 'none';
               oDiv3.style.display = 'block';
           }else{
               
           }
       };
     </script>