上海专治痘痘的医院:树形产品目录如果做？

注意：他只支持IE

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ver4 = (NS4 || IE4) ? 1 : 0;

if (ver4) {
with (document) {
write("<STYLE TYPE='text/css'>");
if (NS4) {
write(".parent {position:absolute; visibility:visible}");
write(".child {position:absolute; visibility:visible}");
write(".regular {position:absolute; visibility:visible}")
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else {
write(".child {display:none}")
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write("</STYLE>");
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else {
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if (whichEl.className == "child") whichEl.style.display = "none";
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}

function expandIt(el) {
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if (IE4) {
whichEl = eval(el + "Child");
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whichEl.style.display = "block";
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else {
whichEl = eval("document." + el + "Child");
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whichEl.visibility = "show";
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else {
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arrange();
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onload = initIt;
</script>
</font></p>
<div id="KB1Parent" class="parent"> <a href="#" onClick="expandIt('KB1'); return false" ><img src="img/plus.gif" border=0>文件夹一</a></div>
<div id="KB1Child" class="child"> <a href="sample.htm" target="_blank" ><img src="img/spacer.gif" border=0 alt=""><img src="img/open.gif" border=0>页面一</a><br>
<a href="sample.htm" target="_blank" ><img src="img/spacer.gif" border=0 alt="" width="15" height="11"><img src="img/open.gif" border=0>页面二</a><br>
<a href="sample.htm" target="_blank" ><img src="img/spacer.gif" border=0 alt="" width="15" height="11"><img src="img/open.gif" border=0>页面三</a></div>
<div id="KB2Parent" class="parent"> <a href="#" onClick="expandIt('KB2'); return false" ><img src="img/plus.gif" border=0>文件夹二</a></div>
<div id="KB2Child" class="child"> <a href="sample.htm" target="_blank" ><img src="img/spacer.gif" border=0 alt="" width="15" height="11"><img src="img/open.gif" border=0>页面一</a><br>
<a href="sample.htm" target="_blank" ><img src="img/spacer.gif" border=0 alt=""><img src="img/open.gif" border=0>页面二</a><br>
<a href="sample.htm" target="_blank" ><img src="img/spacer.gif" border=0 alt="" width="15" height="11"><img src="img/open.gif" border=0>页面三</a></div>
<div id="KB3Parent" class="parent"> <a href="#" onClick="expandIt('KB3'); return false" ><img src="img/plus.gif" border=0>文件夹三</a></div>
<div id="KB3Child" class="child"> <a href="sample.htm" target="_blank" ><img src="img/spacer.gif" border=0 alt=""><img src="img/open.gif" border=0>页面一</a><br>
<a href="sample.htm" target="_blank" ><img src="img/open.gif" border=0>页面二</a><br>
<a href="sample.htm" target="_blank" ><img src="img/spacer.gif" border=0 alt=""><img src="img/open.gif" border=0>页面三</a></div>
<script language="JavaScript">
if (NS4) {
firstEl = "KB1Parent";
firstInd = getIndex(firstEl);
arrange();
}
</script>

FLASH可以实现~~~~