将廣告内容放在div中，設定一個id，然後用下面方法調用
var adcls=new
AdMove("div的id");
adcls.Run();
注意，在調用前要先引用Main.js和AdFloat.js,div也要在調用前寫好，原因就不用說了吧
或者也可以用下面方法，在頁面加載完成時調用，就不用考慮位置了addEvent(window,"load",initad);
function
initad(){
}
還有兩個方法一般情況下沒什麼用，有興趣的可以試試，功能是設定漂浮的起始坐标和方向的，如果省掉的話是随機位置随機方向
adcls.SetLocation(x,y)
adcls.SetDirection(dirx,diry)
漂浮廣告的斜率是每次碰壁後随機改變的，這樣就決不可能出現多個廣告，起始位置和方向一緻導緻其中一個總是被擋住，雖然幾率很小
下面是示範
<!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><title>wahaha</title>
<meta
http-equiv="Content-Type" content="text/html;charset=gb2312" />
<script
type="text/javascript">
<!--
//公共腳本檔案 main.js
addEvent(obj,evtType,func,cap){
cap=cap||false;
if(obj.addEventListener){
obj.addEventListener(evtType,func,cap);
return
true;
}else if(obj.attachEvent){
if(cap){
obj.setCapture();
}else{
return obj.attachEvent("on" +
evtType,func);
return false;
getPageScroll(){
var xScroll,yScroll;
if (self.pageXOffset) {
xScroll =
self.pageXOffset;
} else if (document.documentElement &&
document.documentElement.scrollLeft){
document.documentElement.scrollLeft;
} else if (document.body) {
document.body.scrollLeft;
if (self.pageYOffset) {
yScroll =
self.pageYOffset;
document.documentElement.scrollTop){
document.documentElement.scrollTop;
document.body.scrollTop;
arrayPageScroll = new
Array(xScroll,yScroll);
return arrayPageScroll;
GetPageSize(){
var xScroll, yScroll;
if (window.innerHeight &&
window.scrollMaxY) {
xScroll = document.body.scrollWidth;
window.innerHeight + window.scrollMaxY;
} else if (document.body.scrollHeight
> document.body.offsetHeight){
document.body.scrollWidth;
yScroll = document.body.scrollHeight;
} else
{
xScroll = document.body.offsetWidth;
document.body.offsetHeight;
var windowWidth, windowHeight;
if
(self.innerHeight) {
windowWidth = self.innerWidth;
windowHeight =
self.innerHeight;
document.documentElement.clientHeight) {
windowWidth =
document.documentElement.clientWidth;
document.documentElement.clientHeight;
} else if (document.body)
windowWidth = document.body.clientWidth;
document.body.clientHeight;
if(yScroll <
windowHeight){
pageHeight = windowHeight;
} else {
pageHeight =
yScroll;
if(xScroll < windowWidth){
pageWidth = windowWidth;
else {
pageWidth = xScroll;
arrayPageSize = new
Array(pageWidth,pageHeight,windowWidth,windowHeight)
arrayPageSize;
//廣告腳本檔案 AdMove.js
/*
例子
<div
id="Div2">
***** content ******
</div>
var ad=new
AdMove("Div2");
ad.Run();
*/
////////////////////////////////////////////////////////
var
AdMoveConfig=new
Object();
AdMoveConfig.IsInitialized=false;
AdMoveConfig.ScrollX=0;
AdMoveConfig.ScrollY=0;
AdMoveConfig.MoveWidth=0;
AdMoveConfig.MoveHeight=0;
AdMoveConfig.Resize=function(){
winsize=GetPageSize();
AdMoveConfig.MoveWidth=winsize[2];
AdMoveConfig.MoveHeight=winsize[3];
AdMoveConfig.Scroll();
AdMoveConfig.Scroll=function(){
winscroll=getPageScroll();
AdMoveConfig.ScrollX=winscroll[0];
AdMoveConfig.ScrollY=winscroll[1];
addEvent(window,"resize",AdMoveConfig.Resize);
addEvent(window,"scroll",AdMoveConfig.Scroll);
AdMove(id){
if(!AdMoveConfig.IsInitialized){
AdMoveConfig.Resize();
AdMoveConfig.IsInitialized=true;
obj=document.getElementById(id);
obj.style.position="absolute";
W=AdMoveConfig.MoveWidth-obj.offsetWidth;
H=AdMoveConfig.MoveHeight-obj.offsetHeight;
var x = W*Math.random(),y =
H*Math.random();
var rad=(Math.random()+1)*Math.PI/6;
kx=Math.sin(rad),ky=Math.cos(rad);
var dirx = (Math.random()<0.5?1:-1),
diry = (Math.random()<0.5?1:-1);
var step = 1;
interval;
this.SetLocation=function(vx,vy){x=vx;y=vy;}
this.SetDirection=function(vx,vy){dirx=vx;diry=vy;}
obj.CustomMethod=function(){
obj.style.left
= (x + AdMoveConfig.ScrollX) + "px";
obj.style.top = (y +
AdMoveConfig.ScrollY) +
"px";
rad=(Math.random()+1)*Math.PI/6;
x
= x + step*kx*dirx;
if (x < 0){dirx = 1;x =
0;kx=Math.sin(rad);ky=Math.cos(rad);}
if (x > W){dirx = -1;x =
W;kx=Math.sin(rad);ky=Math.cos(rad);}
y = y + step*ky*diry;
if (y <
0){diry = 1;y = 0;kx=Math.sin(rad);ky=Math.cos(rad);}
if (y > H){diry =
-1;y = H;kx=Math.sin(rad);ky=Math.cos(rad);}
this.Run=function(){
delay = 10;
interval=setInterval(obj.CustomMethod,delay);
obj.onmouseout=function(){interval=setInterval(obj.CustomMethod,
delay);}
//-->
</script>
</head>
<body>
id="gg1"
style="width:100px;height:100px;background-color:red;color:yellow">
廣告1
id="gg2"
style="width:100px;height:100px;background-color:blue;color:yellow">
廣告2
id="gg3"
style="width:100px;height:100px;background-color:green;color:yellow">
廣告3
var ad1=new
AdMove("gg1");
ad1.Run();
var ad2=new AdMove("gg2");
ad2.Run();
ad3=new
AdMove("gg3");
ad3.Run();
</body>
</html>
![主流浏覽器四大綜合性能測試[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)