脚本说明:
第一步:把如下代码加入<head>区域中
<script language="JavaScript1.2">
scores = new Array(20);var numTotal=0;NS4 = (document.layers) ? 1 : 0;IE4 = (doc
ument.all) ? 1 : 0;ver4 = (NS4 || IE4) ? 1 : 0;if (ver4) { with (document) {
write("<STYLE TYPE='text/css'>"); if (NS4) { write(".pare
nt {position:absolute; visibility:visible}"); write(".child {position:
absolute; visibility:visible}"); write(".regular {position:absolute; v
isibility:visible}") } else { write(".child {display:non
e}") } write("</STYLE>"); }}function getIndex(el) { ind = nul
l; for (i=0; i<document.layers.length; i++) { whichEl = document.layers
[i]; if (whichEl.id == el) { ind = i; break;
} } return ind;}function arrange() { nextY = document.layers[firstInd].p
ageY +document.layers[firstInd].document.height; for (i=firstInd+1; i<document
.layers.length; i++) { whichEl = document.layers[i]; if (whichEl.vi
sibility != "hide") { whichEl.pageY = nextY; nextY += which
El.document.height; } }}function initIt(){ if (!ver4) return; if
(NS4) { for (i=0; i<document.layers.length; i++) { whichEl = do
cument.layers[i]; if (whichEl.id.indexOf("Child") != -1) whichEl.visib
ility = "hide"; } arrange(); } else { divColl = documen
t.all.tags("DIV"); for (i=0; i<divColl.length; i++) { whichEl =
divColl(i); if (whichEl.className == "child") whichEl.style.display =
"none"; } }}function expandIt(el) { if (!ver4) return; if (IE4)
{ whichEl1 = eval(el + "Child"); for(i=1;i<=numTotal;i++){
whichEl = eval(scores[i] + "Child&