<head>
<script language="JavaScript">
<!-- Begin
function scrollit() {
for (I=1; I<=750; I++){
parent.scroll(1,I)
?? }
}
function scrollit1() {
for (I=750; I>1; I=I-1){
parent.scroll(1,I)
?? }
}
// End -->
</script>
</head>
<body>
<input type=button value="向下滾屏" onClick="scrollit()" name="button">
<input type=button value="向上滾屏" onClick="scrollit1()" name="button2">
</body>