tapestry json 实现从数据库读取数据生成树

				/*
				 * Ext JS Library 2.1
				 * Copyright(c) 2006-2008, Ext JS, LLC.
				 * licensing@extjs.com
				 * 
				 * http://extjs.com/license
				 */
				
				.x-window-dlg .x-window-body {
				    border:0 none !important;
				    padding:5px 10px;
				    overflow:hidden !important;
				}
				.x-window-dlg .x-window-mc {
				    border:0 none !important;
				}
				.x-window-dlg .ext-mb-text,
				.x-window-dlg .x-window-header-text {
				    font-size:12px;
				}
				.x-window-dlg .ext-mb-input {
				    margin-top:4px;
				    width:95%;
				}
				.x-window-dlg .ext-mb-textarea {
				    margin-top:4px;
				    font:normal 12px tahoma,arial,helvetica,sans-serif;
				}
				.x-window-dlg .x-progress-wrap {
				    margin-top:4px;
				}
				.ext-ie .x-window-dlg .x-progress-wrap {
				    margin-top:6px;
				}
				.x-window-dlg .x-msg-box-wait {
				    background: transparent url(../images/default/grid/loading.gif) no-repeat left;
				    display:block;
				    width:300px;
				    padding-left:18px;
				    line-height:18px;
				}
				.x-window-dlg .ext-mb-icon {
				    float:left;
				    width:47px;
				    height:32px;
				}
				.x-window-dlg .ext-mb-icon {
				    float:left;
				    width:47px;
				    height:32px;
				}
				.ext-ie .x-window-dlg .ext-mb-icon {
				    width:44px; /* 3px IE margin issue */
				}
				.x-window-dlg .ext-mb-info {
				    background:transparent url(../images/default/window/icon-info.gif) no-repeat top left;
				}
				.x-window-dlg .ext-mb-warning {
				    background:transparent url(../images/default/window/icon-warning.gif) no-repeat top left;
				}
				.x-window-dlg .ext-mb-question {
				    background:transparent url(../images/default/window/icon-question.gif) no-repeat top left;
				}
				.x-window-dlg .ext-mb-error {
				    background:transparent url(../images/default/window/icon-error.gif) no-repeat top left;
				}
				.ext-gecko .ext-mb-fix-cursor {
				    overflow:auto;
				}