window.title赋值问题

Question

window第一次创建的时候，title属性正常
但是第二次show()，title显示的还是以前的
我用js调试看了下，赋值已经成功，但是window的标题还是第一次创建的那个，代码如下
希望高手帮我看看怎么解决，非常感谢。

var main_win_SelectedOrderDetail = null;
function OpenWinSelectStyle(tt) {
if (!main_win_SelectedOrderDetail) {
main_win_SelectedOrderDetail = new Ext.Window({
title: tt,
width: 860,
height: 470,
layout: "fit",
modal: true,
plain: true,
border: false,
closable: false,
resizable: false,
html: 'test',
buttons: [
{ text: '确定' }, { text: "取消", handler: CloseWinSelectStyle }
]
});
}
main_win_SelectedOrderDetail.title = tt;
main_win_SelectedOrderDetail.doLayout(true);
main_win_SelectedOrderDetail.show();
}
function CloseWinSelectStyle() { main_win_SelectedOrderDetail.hide(); }

Answer 1

setTitle( String title, [String iconCls] ) : void
Sets the title text for the panel and optionally the icon class. In order to be able to set the title, a header eleme...

Sets the title text for the panel and optionally the icon class.

In order to be able to set the title, a header element must have been created for the Panel. This is triggered either by configuring the Panel with a non-blank title, or configuring it with header: true.
Parameters:

* title : String
  The title text to set
* iconCls : String
  (optional) iconCls A user-defined CSS class that provides the icon image for this panel

Returns:

* void