javascript FAQ function (question reply)_javascript skills

The effect is as follows: when clicking on the question, the following reply content is displayed.

Copy code The code is as follows:

script type="text/ javascript">
onload = function(){
faq(document.getElementsByTagName("dl")[0], "dt", "dd");
/*
* faq function : elem is the parent element, qTag is the title element, aTag is the content element
*/
}
function faq(elem, qTag, aTag){
aTag = aTag || "dd"; / / Provide default value, the same below
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;
//Get a reference to the next element of the current element
while (next.nodeType != 1) {
next = next.nextSibling;
}
if (next.style.display != "none") {
next.style.display = "none";
}
else {
next.style.display = "block";
}
}
}
}

Test code:

<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <title>Untitled Document</title> <style type="text/css"> dd { background: #eee; border: 1px solid #ccc; margin-left: 2px; padding: 4px; } </style> <dl> <dt> <b> </b>One question:What are ready to do?</dt> <dd> </dd> What I want to do is you,do you understand my feeling to you. I hope you are the same to me. <dt> <b> </b>Two questing:What do you want?</dt> <dd> </dd> I want to see you now,I miss you so much,I want to see you at this moment. <dt> </dt> Three question:Do you want to have a girlfriend? <dd> </dd> I think everyone wants it so much,me too,I want to have someone talk to me everyday. </dl>
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