function createLoginDialog(){
var obj = $("<div></div>").attr("title","create one dialog!").attr("id","dialogTest");
var form = $("<FORM></FORM>").attr("name","loginForm").attr("onSubmit","return check()").attr("action","doManage/doLogin.jsp").attr("method","post");
var divForm = obj.append(form);
var username = $("<lable></lable>").text("用户名:");
objobj = divForm.append(username);
var userinput = $("<input type='text' name='username'>");
objobj = divForm.append(userinput);
var br = $("<br>");
divForm.append(br);
var password = $("<lable></lable>").text("密    码:");
objobj = divForm.append(password);
var passinput = $("<input type='password' name='password'>");
objobj = divForm.append(passinput);
divForm.addClass('flora').dialog({
width:350,
height:200,
resizable:'disable',
buttons:{
'OK':function(){
},
'Cancel':function(){
$(this).dialog('close');
}
},
title:'登陆',
});
}

'OK':function(){
},