左右相背移动代码

代码:

<marquee height="100" width="300">
<img title="春天没来欢迎您" alt="春天没来欢迎您" src="http://image55.360doc.com/DownloadImg/2012/09/0708/26671783_4.jpg" height="100">
<img title="春天没来欢迎您" alt="春天没来欢迎您" src="http://image55.360doc.com/DownloadImg/2012/09/0708/26671783_4.jpg" height="100">
<img title="春天没来欢迎您" alt="春天没来欢迎您" src="http://image55.360doc.com/DownloadImg/2012/09/0708/26671783_4.jpg" height="100">
</marquee> 
<marquee direction="right" height="100" width="300">
<img title="春天没来欢迎您" alt="春天没来欢迎您" src="http://image55.360doc.com/DownloadImg/2012/09/0708/26671783_4.jpg" height="100">
<img title="春天没来欢迎您" alt="春天没来欢迎您" src="http://image55.360doc.com/DownloadImg/2012/09/0708/26671783_4.jpg" height="100">
<img title="春天没来欢迎您" alt="春天没来欢迎您" src="http://image55.360doc.com/DownloadImg/2012/09/0708/26671783_4.jpg" height="100">
</marquee>