function initUI(_box) {
 var $p = $(_box || document);

 // dwz.ajax.js
 if ($.fn.ajaxTodo) {
 $("a[target=ajaxTodo]", $p).ajaxTodo();
 }
}

function ajaxTodo(url, callback) {
 var $callback = callback;
 if (!$.isFunction($callback)) {
 $callback = eval('(' + callback + ')');
 }
 var forwardUrl = window.location.href;
 if (url.indexOf("") != -1) {
 url += "&forwardUrl=" + forwardUrl;
 } else {
 url += "" + forwardUrl;
 }
 $.ajax({
 type : 'POST',
 url : url,
 dataType : "json",
 cache : false,
 success : $callback,
 error : YUNM.ajaxError
 });
}

$.fn.extend({
 ajaxTodo : function() {
 return this.each(function() {
 var $this = $(this);
 $this.click(function(event) {
 var url = unescape($this.attr("href")).replaceTmById($(event.target).parents(".unitBox:first"));
 YUNM.debug(url);
 if (!url.isFinishedTm()) {
  $.showErr($this.attr("warn"));
  return false;
 }
 var title = $this.attr("atitle");
 if (title) {
  $.showConfirm(title, function() {
  ajaxTodo(url, $this.attr("callback"));
  });
 } else {
  ajaxTodo(url, $this.attr("callback"));
 }
 event.preventDefault();
 });
 });
 },
});

function ajaxDone(json) {
 YUNM.ajaxDone(json);
 if (json[YUNM.keys.statusCode] == YUNM.statusCode.ok || json[YUNM.keys.statusCode] == YUNM.statusCode.info) {
 // 如果指定了后调转页面，进行调转
 if (json.forwardUrl) {
 location.href = json.forwardUrl;
 }
 }
}

$.showConfirm = function(str, funcok, funcclose) {
 var okfunc = function() {
 $.weeboxs.close("yunm_confirm_box");
 funcok.call();
 };
 $.weeboxs.open(str, {
 boxid : 'yunm_confirm_box',
 contentType : 'text',
 showButton : true,
 showCancel : true,
 showOk : true,
 title : '确认',
 width : 280,
 type : 'wee',
 onopen : function() {
 init_ui_button();
 },
 onclose : funcclose,
 onok : okfunc
 });
};
function init_ui_button() {
 $("button.ui-button[init!='init']").each(function(i, o) {
 $(o).attr("init", "init"); // 为了防止重复初始化
 $(o).ui_button();
 });
}

 public void logout() {
 if (getSession().getAttribute("username") != null) {
 // 清除session
 getSession().removeAttribute("username");
 }
 ajaxDoneSuccess("登出成功！");
 renderJson();
}