扩展收缩树形目录

<STYLE>
#LC { font-size:12px }
</STYLE>
<script>
<!--
var number=3; //根目录个数

function LMYC() {
var lbmc;
//var treePic;
for (i=1;i<=number;i++) {
lbmc = eval('LM' + i);
treePic = eval('treePic'+i);
treePic.src = '';
lbmc.style.display = 'none';
}
}
function ShowFLT(i) {
lbmc = eval('LM' + i);
treePic = eval('treePic' + i)
if (lbmc.style.display == 'none') {
LMYC();
treePic.src = '';
lbmc.style.display = '';
}
else
{
treePic.src = '';
lbmc.style.display = 'none';
}
}
//-->
</script>
<DIV><IMG id=treePic1 ><A onclick=javascript:ShowFLT(1) href="javascript:void(null)">1</A></DIV>
<DIV id=LM1 style="DISPLAY: none">
<DIV id=LC>11</DIV>
<DIV id=LC>12</DIV>
<DIV id=LC>13</DIV>
<DIV id=LC>14</DIV>
<DIV id=LC>15</DIV>
<DIV id=LC>16</DIV>
</DIV>

<DIV><IMG id=treePic2 ><A onclick=javascript:ShowFLT(2) href="javascript:void(null)">2</A></DIV>
<DIV id=LM2 style="DISPLAY: none">
<DIV id=LC>21</DIV>
<DIV id=LC>22</DIV>
<DIV id=LC>23</DIV>
<DIV id=LC>24</DIV>
<DIV id=LC>25</DIV>
<DIV id=LC>26</DIV>
</DIV>

<DIV><IMG id=treePic3 ><A onclick=javascript:ShowFLT(3) href="javascript:void(null)">3</A></DIV>
<DIV id=LM3 style="DISPLAY: none">
<DIV id=LC>31</DIV>
<DIV id=LC>32</DIV>
<DIV id=LC>33</DIV>
<DIV id=LC>34</DIV>
<DIV id=LC>35</DIV>
<DIV id=LC>36</DIV>
</DIV>