各位大神

求助各位大神
怎么使dtree的checkbox根据数据库中的内容记录对应打勾，我的dtree.js是下面的，谢谢了

/*--------------------------------------------------|

| dTree 2.05 | www.destroydrop.com/javascript/tree/ |

|---------------------------------------------------|

| Copyright (c) 2002-2003 Geir Landr? |

| |

| This script can be used freely as long as all |

| copyright messages are intact. |

| |

| Updated: 17.04.2003 |

|--------------------------------------------------*/



// Node object

function Node(id, pid, name, url, title, target, icon, iconOpen, open) {

this.id = id;

this.pid = pid;

this.name = name;

this.url = url;

this.title = title;

this.target = target;

this.icon = icon;

this.iconOpen = iconOpen;

this._io = open || false;

this._is = false;

this._ls = false;

this._hc = false;

this._ai = 0;

this._p;

};

// Tree object

function dTree(objName, iPath, formId) {

this.config = {
target : null,

folderLinks : true,

useSelection : true,

useCookies : true,

useLines : true,

useIcons : false,
useCheckBox : true,

useStatusText : false,

closeSameLevel : false,

inOrder : false

}

this.icon = {

root : 'img/base.gif',

folder : 'img/folder.gif',

folderOpen : 'img/folderopen.gif',

node : 'img/page.gif',

empty : 'img/empty.gif',

line : 'img/line.gif',

join : 'img/join.gif',

joinBottom : 'img/joinbottom.gif',

plus : 'img/plus.gif',

plusBottom : 'img/plusbottom.gif',

minus : 'img/minus.gif',

minusBottom : 'img/minusbottom.gif',

nlPlus : 'img/nolines_plus.gif',

nlMinus : 'img/nolines_minus.gif'

};

this.obj = objName;

this.aNodes = [];

this.aIndent = [];

this.root = new Node(-1);

this.selectedNode = null;

this.selectedFound = false;

this.completed = false;

};



// Adds a new node to the node array

dTree.prototype.add = function(id, pid, name, url, title, target, icon, iconOpen, open) {

this.aNodes[this.aNodes.length] = new Node(id, pid, name, url, title, target, icon, iconOpen, open);

};



// Open/close all nodes

dTree.prototype.openAll = function() {

this.oAll(true);

};

dTree.prototype.closeAll = function() {

this.oAll(false);

};



// Outputs the tree to the page

dTree.prototype.toString = function() {

var str = '<div class="dtree"><form id="'+this.formId+'">\n';

if (document.getElementById) {

if (this.config.useCookies) this.selectedNode = this.getSelected();

str += this.addNode(this.root);

} else str += 'Browser not supported.';

str += '</form></div>';
//document.getElementById("test").value = str;
//alert(str);
if (!this.selectedFound) this.selectedNode = null;

this.completed = true;

return str;

};



// Creates the tree structure

dTree.prototype.addNode = function(pNode) {

var str = '';

var n=0;
if (this.config.inOrder) n = pNode._ai;

for (n; n<this.aNodes.length; n++) {