scores = new Array(20);
var numTotal = 0;
NS4 = (document.layers) ? 1 : 0;
IE4 = (document.all) ? 1 : 0;
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}")
		} else {
			//write(".child {display:none}")
		}
		write("</STYLE>");
	}
}
function getIndex(el) {
	ind = null;
	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].pageY
			+ document.layers[firstInd].document.height;
	for (i = firstInd + 1; i < document.layers.length; i++) {
		whichEl = document.layers[i];
		if (whichEl.visibility != "hide") {
			whichEl.pageY = nextY;
			nextY += whichEl.document.height;
		}
	}
}
function initIt() {
	/*if (!ver4)
		return;
	if (NS4) {
		for (i = 0; i < document.layers.length; i++) {
			whichEl = document.layers[i];
			if (whichEl.id.indexOf("Child") != -1)
				whichEl.visibility = "hide";
		}
		arrange();
	} else {
		divColl = document.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();
		for (i = 1; i <= numTotal; i++) {
			whichEl = eval(scores[i] + "Child");
			if (whichEl != whichEl1) {
				whichEl.style.display = "none";
			}
		}
		whichEl1 = eval(el + "Child");
		if (whichEl1.style.display == "none") {
			whichEl1.style.display = "block";
		} else {
			whichEl1.style.display = "none";
		}
	} else {
		whichEl = eval("document." + el + "Child");
		for (i = 1; i <= numTotal; i++) {
			whichEl = eval("document." + scores[i] + "Child");
			if (whichEl != whichEl1) {
				whichEl.visibility = "hide";
			}
		}
		if (whichEl.visibility == "hide") {
			whichEl.visibility = "show";
		} else {
			whichEl.visibility = "hide";
		}
		arrange();
	}*/
}
onload = initIt;

// �м���һ��Ŀ¼���͸ı�numTotal����ֵ

numTotal = 5;
scores[1] = 'KB1';
scores[2] = 'KB1';
scores[3] = 'KB2';
scores[4] = 'KB3';
scores[5] = 'KB4';