适合做faq或menu的滑动效果菜单

2009-11-24 导航菜单 ℃

<!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=gb2312" />
<title>无标题文档</title>
</head>
<style type="text/css">

</style>
<script type="text/javascript">
//<![CDATA[
window.onload = function() {
rolinTab("rolin")
}
function rolinTab(obj) {
var list = $(obj).getElementsByTagName("LI");
var state = {show:false,hidden:false,showObj:false};
for (var i=0; i<list.length; i++) {
var tmp = new rolinItem(list[i],state);
if (i == 0) tmp.pShow();
}
}
function rolinItem(obj,state) {
var speed = 0.0666; 
var range = 1;
var interval;
var tarH;
var tar = this;
var head = getFirstChild(obj);
var content = getNextChild(head);
var isOpen = false;
this.pHidden = function() {
if (isOpen) hidden();
}
this.pShow = show;
var baseH = content.offsetHeight;
content.style.display = "none";
var isOpen = false;
head.onmouseover = function() {
this.style.background = "#EFEFEF";
}
head.onmouseout = mouseout;
head.onclick = function() {
this.style.background = "#EFEFEF";
if (!state.show && !state.hidden) {
if (!isOpen) {
head.onmouseout = null;
show();
} else {
hidden();
}
}
}
function mouseout() {
this.style.background = "#FFF"
}
function show() {
head.style.borderBottom = "1px solid #DADADA";
state.show = true;
if (state.openObj && state.openObj != tar ) {
state.openObj.pHidden();
}
content.style.height = "0px";
content.style.display = "block";
content.style.overflow = "hidden";
state.openObj = tar;
tarH = baseH;
interval = setInterval(move,10);
}
function showS() {
isOpen = true;
state.show = false;
}
function hidden() {
state.hidden = true;
tarH = 0;
interval = setInterval(move,10);
}
function hiddenS() {
head.style.borderBottom = "none";
head.onmouseout = mouseout;
head.onmouseout();
content.style.display = "none";
isOpen = false;
state.hidden = false;
}
function move() {
var dist = (tarH - content.style.height.pxToNum())*speed;
if (Math.abs(dist) < 1) dist = dist > 0 ? 1: -1;
content.style.height = (content.style.height.pxToNum() + dist) + "px";
if (Math.abs(content.style.height.pxToNum() - tarH) <= range ) {
clearInterval(interval);
content.style.height = tarH + "px";
if (tarH != 0) {
showS()
} else {
hiddenS();
}
}
}
}
var $ = function($) {return document.getElementById($)};
String.prototype.pxToNum = function() {return Number(this.replace("px",""))}
function getFirstChild(obj) {
var result = obj.firstChild;
while (!result.tagName) {
result = result.nextSibling;
}
return result;
}
function getNextChild(obj) {
var result = obj.nextSibling;
while (!result.tagName) {
result = result.nextSibling;
}
return result;
}
//]]>
</script>
<body>
<ul class="rolinList" id="rolin">
  <li>
    <h2>导航 1</h2>
    <div class="content">
      <p>测试测试测试测试！<br />
        <br />
        <a href="/" target="_blank">测试测试测试测试</a></p>
    </div>
  </li>
  <li>
    <h2>导航 2</h2>
    <div class="content">
      <p>测试测试测试测试！<br />
        <br />
        <a href="/" target="_blank">测试测试测试测试</a></p>
    </div>
  </li>
  <li>
    <h2>导航 3</h2>
    <div class="content">
      <p>测试测试测试测试！<br />
        <br />
        <a href="/" target="_blank">测试测试测试测试</a></p>
    </div>
  </li>
  <li>
    <h2>导航 4</h2>
    <div class="content">
      <p>测试测试测试测试！<br />
        <br />
        <a href="/" target="_blank">测试测试测试测试</a></p>
    </div>
  </li>
  <li>
    <h2>导航 5</h2>
    <div class="content">
      <p>测试测试测试测试！<br />
        <br />
        <a href="/" target="_blank">测试测试测试测试</a></p>
    </div>
  </li>
  <li>
    <h2>导航 6</h2>
    <div class="content">
      <p>测试测试测试测试！<br />
        <br />
        <a href="#" target="_blank">测试测试测试测试</a></p>
    </div>
  </li>
</ul>
</body>
</html>

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