10.2-实用的动画
***代码亲测可用***
HTML：
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8"/>
<title>LIST</title>
<script type="text/javascript" src="script/01.js"></script>
<style type="text/css" media="screen">
@import url("01.css");
</style>
</head>
<body >
<h1>Web Design</h1>
<p>There are the things you should know.</p>
<ol id="linklist">
<li><a href="http://www.baidu.com">Structure</a></li>
<li><a href="http://www.baidu.com">Presentation</a></li>
<li><a href="http://www.baidu.com">Bechavior</a></li>
</ol>
</body>
</html>
JS：
function prepareSlideshow(){
var slideshow = document.createElement("div");
slideshow.setAttribute("id", "slideshow");
var preview = document.createElement("img");
preview.setAttribute("src","img/j.jpg");
preview.setAttribute("alt", "edsvfdc");
preview.setAttribute("id", "preview");
slideshow.appendChild(preview);
preview.style.position = "absolute";
preview.style.left = "0px";
preview.style.top = "0px";
var list = document.getElementById("linklist");
insertAfter(slideshow, list);
var links = list.getElementsByTagName("a");
links[0].onmouseover = function(){
moveElement("preview",-100,0,10);
}
links[1].onmouseover = function(){
moveElement("preview",-200,0,10);
}
links[2].onmouseover = function(){
moveElement("preview",-300,0,10);
}
}
function moveElement(elementID,final_x,final_y,interval){
var elem = document.getElementById(elementID);
if(elem.movement){
clearTimeout(elem.movement);
}
var xpos = parseInt(elem.style.left);
var ypos = parseInt(elem.style.top);
if(xpos == final_x && ypos == final_y) return true;
if(xpos>final_x){
xpos--;
}
if(xpos<final_x){
xpos++;
}
if(ypos>final_y){
ypos--;
}
if(ypos<final_y){
ypos++;
}
elem.style.left = xpos + "px";
elem.style.top = ypos + "px";
var repeat = "moveElement('"+elementID+"',"+final_x+","+final_y+","+interval+")";
elem.movement = setTimeout(repeat, interval);
}
function addLoadEvent(func){
var oldonload = window.onload;
if (typeof window.onload != "function"){
window.onload = func;
}else{
window.onload = function(){
oldonload();
func();
}
}
}
function insertAfter(newElement, targetElement){
var parent = targetElement.parentNode;
if(parent.lastChild == targetElement){
parent.appendChild(newElement);
}else{
parent.insertBefore(newElement, targetElement.nextSibling);
}
}
addLoadEvent(prepareSlideshow);CSS：
#slideshow{
width: 100px;
height: 100px;
position: relative;
overflow: hidden;
}***end***