<select name="hh" ID="Select1" onchange="IsView(this)">
<option value="1">日记</option>
<option value="2">读书心得</option>
</select><select name="fromDb" ID="Select2" style="visibility:hidden">
'从数据库中取出记录集rs
while not rs.eof 'rs为recordset
... '动态显示options
rs.movenext
wend
</select><script language=javascript>
function IsView(obj)
{
Select2.style.visibility=(obj.options[obj.selectedIndex].value=="1"?"hidden":"visible");
}
</script>