DIV隐藏与重显

<!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>

<script type="text/javascript">
<!--
function clickSex(ctype){
if(ctype=="man"){
document.getElementById("man").style.display="block";
document.getElementById("miss").style.display="none";
}
if(ctype=="miss"){
document.getElementById("man").style.display="none";
document.getElementById("miss").style.display="block";
}
}

function isOK(){
return confirm("是否确认提交数据？");
}

function getResult(){
var sex1=document.getElementById("sex1").checked;
var sex2=document.getElementById("sex2").checked;
var yourmoney=document.getElementById("yourmoney").value;
var yoursmoke=document.getElementById("yoursmoke").value;
var yourwine=document.getElementById("yourwine").value;
var yourface=document.getElementById("yourface").value;
var yourclothe=document.getElementById("yourclothe").value;
var result=0;
if(sex1==true){
result=yourmoney-yoursmoke-yourwine;
}
if(sex2==true){
result=yourmoney-yourface-yourclothe;
}
return result;
}

function outPrint(name,age,money,result){
var str=name+"，您好！<br>您现在"+age+"岁<br>您的月收入为："+money+"<br>您月结余为："+result+"<br>谢谢参与！";
document.write(str);
}

function mainClick(){
var isok=isOK();
if(isok==true){
var yourname=document.getElementById("yourname").value;
var yourage=document.getElementById("yourage").value;
var yourmoney=document.getElementById("yourmoney").value;
var yourresult=getResult();
outPrint(yourname,yourage,yourmoney,yourresult);
}
}

//-->
</script>

</head>

<body>

<form name="myform">
性别：
<input type="radio" id="sex1" name="sex" value="先生" onclick="clickSex('man')">男&nbsp&nbsp;
<input type="radio" id="sex2" name="sex" value="小姐" onclick="clickSex('miss')">女<br/>
姓名：</br>
<input type="text" id="yourname" name="yourname" value=""><br/>
年龄：</br>
<input type="text" id="yourage" name="yourage" value=""><br/>
月收入：</br>
<input type="text" id="yourmoney" name="yourmoney" value=""><br/>
<div id="man" style="display:none"> <!--隐藏-->
月抽烟花费：</br>
<input type="text" id="yoursmoke" name="yoursmoke" value=""><br/>
月喝酒花费：</br>
<input type="text" id="yourwine" name="yourwine" value=""><br/>
</div>
<div id="miss" style="display:none">
月美容花费：</br>
<input type="text" id="yourface" name="yourface" value=""><br/>
月购置衣物花费：</br>
<input type="text" id="yourclothe" name="yourclothe" value=""><br/>
<hr/>
</div>
<input type="button" value="提交" onclick="mainClick()">
<input type="reset" value="重填">
</form>

</body>
</html>