var isIE = 0;
var isNS4 = 0;
var isDom = 0;

function getEl(sItem) {
	if (document.all) {
		return document.all[sItem];
	} else if (document.layers) {
		return document.layers[sItem]
	} else {
		return document.getElementById(sItem);
	}
}


function menuItem(nID, nParent, sName, sAction) {
	this.id 		= nID;
	this.parent 	= nParent;
	this.iLevel 	= 0;
	
	this.oParent	= null;
	this.children 	= new Array();
	
	this.sName 		= sName;
	this.sAction 	= sAction

	this.add 		= menuChild;
	this.render 	= menuRender;
}

function menuChild(oParent,nID, nParent, sName, sAction) {
	iIndex = this.children.length;
	o = this.children[iIndex] = new menuItem(nID, nParent, sName, sAction);
	o.oParent = oParent;
	if (oParent != null) o.iLevel = oParent.iLevel + 1;
	return o;
}

function menuRender(iMaxLevel, sOpen, sPath) {
	sp = menuRenderLevel(this.children, "", iMaxLevel, sOpen, sPath);
	s = "";
	s += "<table border=0 cellpadding=2 cellspacing=0>";
	
	s += "<tr height=\"1\">";
	for (i=0;i<iMaxLevel;i++) {
		s += "<td width=15></td>";
	}
	s += "</tr>";
	s+= sp;
	s += "</table><br><table border=\"0\"><tr><td></td></tr></table>";
	
	if (isIE || isDom) {
		oObj = getEl("containerDiv");
		oObj.style.display = "none";
		oObj.innerHTML = s;
		oObj.style.display = "";
	} else if (isNS4) {
		oObj = getEl("containerDiv");
		oObj.document.open();
		oObj.document.write(s);
		oObj.document.close();
	}
}

function menuRenderLevel(a, s, iMaxLevel, sOpen, sPath) {
	var i;
	for (i=0;i<a.length;i++) {
		s+= "<tr>";
		
		if (a[i].sAction != "" && a[i].sAction != null) {
			sCA = "" + a[i].sAction;
			sCA += (a[i].sAction.indexOf("?") == -1) ? "?":"&";
			sCA += "l=" + sPath + a[i].id;
		} else {
			sCA = "javascript:menu_0.render(" + iMaxLevel + ", '" + sPath + a[i].id + "," + "', ',0,')"
		}
		
		if (a[i].iLevel - 1 > 0) s += "<td colspan=\"" + (a[i].iLevel-1) + "\"></td>";
		s += "<td colspan=\"" + (iMaxLevel-a[i].iLevel+1) + "\"><a href=\"" + sCA + "\" class=\"menu\"><img src=\"images/arrow.gif\" width=\"4\" height=\"9\" hspace=\"0\" vspace=\"0\" border=\"0\"> " + a[i].sName + "</a></td>";
		if (a[i].iLevel-1 == 0) s += "<td></td>";
		s+= "</tr>";
	
		if (sOpen.indexOf(","+ a[i].id +",") > -1) s = menuRenderLevel(a[i].children, s, iMaxLevel, sOpen, sPath + a[i].id + ",");
	}
	return s;
}