高分求救，关于目录树中递归调用问题。

/**
 * 使用方法：
1.生成一个新的树对象 var tree = new tree();
2.生成一个新的根对象 var root = new root(1,"根目录","#","");
3.为树对象添加根对象 tree.addRoot(root);
4.为树对象添加节点,节点的顺序应该按id先后来排列
5.画出根对象 tree.drawRoot();
6.画出整个树 tree.drawNodes(tree.root);
例子:
<HTML>
<HEAD>
<TITLE>fff</TITLE>
<META http-equiv=Content-Type content="text/html; charset=gb2312"><SCRIPT language=javascript>
function onclick_alert()
{
alert("对不起！您没该权限！");
}var onecount;
onecount=0;
var topid=000000;
company = new Array();    company[0] = new Array("aa","000000","000001");    company[1] = new Array("bb","000000","000021");    company[2] = new Array("cc","000000","010000");    company[3] = new Array("dd","010000","010001");    company[4] = new Array("ff","010000","010002");    company[5] = new Array("gg","000000","011000");    company[6] = new Array("ee","011000","011001");    company[7] = new Array("hh","000000","012000");    company[8] = new Array("ii","000000","013000");    company[9] = new Array("kk","000000","014000");    company[10] = new Array("jj","000000","015000");    company[11] = new Array("mm","000001","016001");    company[12] = new Array("nn","000001","017002");onecount=13;
</SCRIPT>
<script src="script/FKtree.js"></script>
</HEAD>
<BODY>
<TABLE height="100%" cellSpacing=0 cellPadding=0 width="100%" border=0>
  <TR> 
    <TD width="100%"> 
<script type="text/javascript">
var i=24;
var n=70;
var j;
var k;
var tree = new tree();
var root = new root(1,"center","#","");
tree.addRoot(root);
tree.addNode(new node(2,"system",1,"folder","#",""));tree.addNode(new node(24,"dept",2,"folder","#",""));
for(j=0;j < onecount; j++){        
    if (company[j][1] == topid){
        i++;
        tree.addNode(new node(i,company[j][0],24,"folder","index.jsp?topid="+company[j][2]+"&dept="+company[j][0],""));
        for(k=0;k < onecount; k++){            
            if (company[k][1] == company[j][2]){
                n++;
                tree.addNode(new node(n,company[k][0],i,"file","index.jsp?topid="+company[k][2]+"&dept="+company[k][0],""));
            }
        }
    }
} tree.addNode(new node(3,"abc",2,"file","admin/opmain.jsp","")); tree.addNode(new node(4,"ddfdfd",2,"file","admin/queryRole.jsp","")); tree.addNode(new node(5,"asfd",2,"folder","#",""));
tree.addNode(new node(6,"fdsg",5,"file","#",""));
tree.addNode(new node(7,"sgdsfds",5,"file","#","")); tree.addNode(new node(11,"dfsg",1,"file","#",""));
tree.addNode(new node(12,"fdsg",1,"file","#","")); tree.addNode(new node(19,"fsdg",1,"folder","#",""));
tree.addNode(new node(20,"gfggf",19,"file","#",""));
tree.addNode(new node(21,"fdgsfdg",19,"file","#","")); tree.addNode(new node(22,"ddfdf",1,"file","#",""));
tree.drawRoot();
tree.drawNodes(tree.root);
</script>
  </TD>
</TR>
</TABLE>
</BODY>
</HTML>