javascript FAQ函数(提问+回复)

作者：bea

效果如下图：当点击问题时显示下面的回复内容。

代码如下:

script type="text/javascript">
onload = function(){
faq(document.getElementsByTagName("dl")[0], "dt", "dd");
/*
* faq函数：elem是父元素，qTag是标题元素，aTag是内容元素
*/
}
function faq(elem, qTag, aTag){
aTag = aTag || "dd"; //提供默认值，下同
qTag = qTag || "dt";
elem = elem || document;
var dds = elem.getElementsByTagName(aTag);
for (var i = 0, len = dds.length; i < len; i++) {
dds[i].style.display = "none";
}
var dts = elem.getElementsByTagName(qTag);
for (var i = 0, len = dts.length; i < len; i++) {
dts[i].style.cursor = "hand";
dts[i].onclick = function(){
var next = this.nextSibling;
//获得当前元素的下一个元素的引用
while (next.nodeType != 1) {
next = next.nextSibling;
}
if (next.style.display != "none") {
next.style.display = "none";
}
else {
next.style.display = "block";
}
}
}
}
</script>

测试代码：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Untitled Document</title>
<script type="text/javascript">
onload = function(){
faq(document.getElementsByTagName("dl")[0], "dt", "dd");
/*
* faq函数：elem是父元素，qTag是标题元素，aTag是内容元素
*/
}

function faq(elem, qTag, aTag){
aTag = aTag || "dd"; //提供默认值，下同
qTag = qTag || "dt";
elem = elem || document;
var dds = elem.getElementsByTagName(aTag);
for (var i = 0, len = dds.length; i < len; i++) {
dds[i].style.display = "none";
}
var dts = elem.getElementsByTagName(qTag);
for (var i = 0, len = dts.length; i < len; i++) {
dts[i].style.cursor = "hand";
dts[i].onclick = function(){
var next = this.nextSibling;
//获得当前元素的下一个元素的引用
while (next.nodeType != 1) {
next = next.nextSibling;
}
if (next.style.display != "none") {
next.style.display = "none";
}
else {
next.style.display = "block";
}
}
}
}
</script>
<style type="text/css">
dd {
background: #eee;
border: 1px solid #ccc;
margin-left: 2px;
padding: 4px;
}
</style>
</head>
<body>
<dl>
<dt>
<b>One question:What are ready to do?</b>
</dt>
<dd>
What I want to do is you,do you understand my feeling to you.

I hope you are the same to me.
</dd>
<dt>
<b>Two questing:What do you want?</b>
</dt>
<dd>
I want to see you now,I miss you so much,I want to see you at this moment.
</dd>
<dt>
Three question:Do you want to have a girlfriend?
</dt>
<dd>
I think everyone want it so much,me too,I want to have someone talk to me everyday.
</dd>
</dl>
</body>
</html>

[Ctrl+A 全选注:
如需引入外部Js需刷新才能执行]

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javascript FAQ函数(提问+回复)

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