dhtml 界面UI (tree)
1.xml的部分代码（可以使用<userdata>传递url）：
<item text="Books" id="books" open="1" call="1" select="1">
<item text="Mystery !!! & Thrillers" id="mystery" open="1">
<item text="Bestsellers" id="bsthrillers" >
<item text="Lawrence Block" id="lb">
<userdata name="system">true</userdata>
</item>
2.<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<title>Changing iconsets</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta name="title" content="Samples" />
<meta name="keywords" content="" />
<meta name="description" content="" />
<link rel="icon" href="../common/favicon.ico" type="image/x-icon" />
<link rel="shortcut icon" href="../common/favicon.ico" type="image/x-icon" />
<link rel="stylesheet" href="../common/css/style.css" type="text/css" media="screen" />
</head>
<body>
<link rel="STYLESHEET" type="text/css" href="../../codebase/dhtmlxtree.css">
<script src="../../codebase/dhtmlxcommon.js"></script>
<script src="../../codebase/dhtmlxtree.js"></script>
<table width="20%" style="float:left">
<tr>
<td valign="top">
<div id="treeboxbox_tree0" style="width:100%; height:318px;border :1px solid Silver;"></div><br>
</td>
</tr>
<tr>
<td> </td>
</tr>
</table>
<table style="width:80%;float:left;" border="1">
<tr><td>
<iframe name="right" src="" frameborder="1" width="100%" height="500"></iframe>
</td>
</tr>
</table>
<script>
tree=new dhtmlXTreeObject("treeboxbox_tree0","100%","100%",0);
tree.setSkin('dhx_skyblue');
tree.setImagePath("../../codebase/imgs/");
tree.setOnClickHandler(tonclick);//添加event
tree.loadXML("tree_b.xml");
function tonclick(id) { //不用管id,我也不明白
alert("Item " + tree.getItemText(id) + " was selected"+tree.getUserData(id,"system"));
// window.frames["right"].location="10_tree_iconset.html"; //点击树形菜单，iframe会产生新页面
window.frames["right"].location=tree.getUserData(id,"system");
};
</script>
</body>
</html>