/// <reference path="jquery-1.3.2.min.js"/>

function login()
{
    var username = $("#txtUsername").val();
    var password = $("#txtPassword").val();
    
    if (username == '')
    {
        alert("请输入用户名");
        $("#txtUsername").focus();
        return;
    }
    if (password == '')
    {
        alert("请输入密码");
        $("#txtPassword").focus();
        return;
    }
    
    var data = { username: username, password: password };

    $.ajax({ url: "Login.ashx",
        type: "POST",
        cache: false,
        data: data,
        dataType: "text",
        success: callbackLogin,
        error: function ()
        {
            alert("登录过程出错");
        }
    });
}
function callbackLogin(data)
{
    if (data > 0)
        window.location.href = 'detail.aspx?uid=' + data;
    else
    {
        alert("用户名或密码不正确");
        $("#txtPassword").val('');
        $("#txtUsername").select().focus();
    }
}

$(function ()
{
    $("#txtUsername").add($("#txtPassword")).keydown(function (e)
    {
        if (e.keyCode == 13)
        {
            login();
            return false;
        }
    });
    $("#submit").bind("click", function ()
    {
        login();
    });
});