一个二级树形菜单，初始显示为全部展开，适用于分类较少的情况。

<SCRIPT language=javascript1.2>
function showsubmenu(sid)
{
whichEl = eval("submenu" + sid);
if (whichEl.style.display == "none")
{
eval("submenu" + sid + ".style.display=/"/";");
}
else
{
eval("submenu" + sid + ".style.display=/"none/";");
}
}
</SCRIPT>

<TABLE cellSpacing=0 cellPadding=0 width=776 border=0>

<TR>
<TD vAlign=top><BR>

<UL id=out>
<LI class=one style="CURSOR: hand" onclick=showsubmenu(1)>Canvas prints
<DIV id=submenu1>
<UL class=in>

<LI><A
href="">Landscapes</A>

<LI><A
href="">Classic</A></LI></UL></DIV>
<LI class=one style="CURSOR: hand" onclick=showsubmenu(2)>Folding Screen
Series
<DIV id=submenu2>
<UL class=in>
<LI><A
href="">Folding
Screen Series</A></LI></UL></DIV></LI></UL></TD>
<TD width=8
background=""> </TD>
<TD vAlign=top> </TD>
</TR></TABLE>