页面打开飘动的窗口

看到效果了吧

脚本说明:
第一步：把如下代码加入<body>区域中
<script>

var URL= "http://www.7stk.com";

// Set size of popup
var W= 130; // not less than 100
var H= 180; // not less than 100

// Set margin from edge of screen
var M= 100;

// Set speed
var speed = 20;

// Set increment of motion
var increment = 16;

// Do not edit below this line
//============================
var nowY=M;var nowX=M;
var theWidth=window.screen.width;
var theHeight=window.screen.height;
var limitX=theWidth-W-M;
var limitY=theHeight-H-M;
var s="width="+W+",height="+H;
function doFlyMe(){
P=window.open(URL,"A",s);  
P.resizeTo(W,H);
P.moveTo(M,M);
P.focus(); 
D();}
function D(){
if (nowY<=limitY){
P.moveTo(nowX,nowY);
P.focus();
nowY+=increment;
T=setTimeout("D()",speed);
}else{
clearTimeout(T);
nowY=limitY;
P.moveTo(nowX,nowY);
P.focus();
R();}}
function R(){
if (nowX<=limitX){
P.moveTo(nowX,nowY);
P.focus();
nowX+=increment;
T=setTimeout("R()",speed);
}else{
clearTimeout(T);
nowX=limitX;
P.moveTo(nowX,nowY);
P.focus();
U();}}
function U(){
if (nowY>=M){
P.moveTo(nowX,nowY);
P.focus();
nowY-=increment;
T=setTimeout("U()",speed);
}else{
clearTimeout(T)
nowY=M;
P.moveTo(nowX,nowY);
P.focus();
L();}}
function L(){
if (nowX>=M){
P.moveTo(nowX,nowY);
P.focus();
nowX-=increment;
T=setTimeout("L()",speed);
}else{
clearTimeout(T);
nowX=M;
P.moveTo(nowX,nowY);
P.focus();}}

</script>

第二步：把<body>中的内容改为：
<body  onload="doFlyMe()">