javascript 實現滾屏

<script>   
document.write("<MARQUEE direction=up height=180 scrollAmount=1 scrollDelay=50 onmouseover='this.stop()' onmouseout='this.start()'>");   
</script>  

這裏面是要滾動的內容

 <script>   
document.write("</MARQUEE");   
</script>