js代码部分
<SCRIPT LANGUAGE="JavaScript">
function scroll(n)

...{
temp=n;
Out1.scrollTop=Out1.scrollTop+temp;
if (temp==0) return;
setTimeout("scroll(temp)",80);
}
</SCRIPT>











html部分
<div id="Out1" align="left" style="width:220px; height:255px;overflow: hidden ">
<img border="0" src="index.asp_files/up.gif" width="25" height="24" onmouseover="scroll(-1)" onmouseout="scroll(0)" onmousedown="scroll(-3)">
<img border="0" src="index.asp_files/down.gif" width="25" height="35" onmouseover="scroll(1)" onmouseout="scroll(0)" onmousedown="scroll(3)">
<img border="0" src="index.asp_files/down.gif" width="25" height="35" onmouseover="scroll(1)" onmouseout="scroll(0)" onmousedown="scroll(3)">