javascript FAQ函数(提问+回复)_javascript技巧-js教程-PHP中文网

javascript FAQ函数(提问+回复)_javascript技巧

php中文网

发布： 2016-05-16 18:49:44

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1416人浏览过

效果如下图：当点击问题时显示下面的回复内容。
javascript FAQ函数(提问+回复)_javascript技巧

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复制代码代码如下:

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 dds[i].style.display = "none"; 
} 
var dts = elem.getElementsByTagName(qTag); 
for (var i = 0, len = dts.length; 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"; 
} 
} 
} 
} 

测试代码：

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>

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