js 实现动态漂移

<!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" xml:lang="en" lang="en">

<head>
  <title></title>
</head>

<body>
<script type="text/javascript">
window.resizeTo(300,300);
window.moveTo(0,0);

var x=0,y=0;
var h=window.screen.Height;
var w=window.screen.Width;
var mx=1,my=1;
function move(){
    if(x<w-300&&mx==1){
        x+=1;
    }else{
        if(x>0){
            x-=1;
            mx=0;
        }else{
            mx=1
        }
    }

    if(y<h-300&&my==1){
        y+=1;
    }else{
        if(y>0){
            y-=1;
            my=0;
        }else{
            my=1;
        }
    }
    window.moveTo(x,y);
}
timer=setInterval("move()",1);
</script>
</body>

</html>

posted @ 2007-09-10 16:04  zijinguang  阅读(285)  评论(0)  编辑  收藏  举报