var ShowLoginForm = function() {
    var html = '';
    html += '<ul>';
    html += '<li><b>用户名：</b><input name="txtUserName" id="txtUserName" maxlength="20" type="text" class="inp-text" /><font color="#FF0000">*</font></li>';
    html += '<li><b>密&nbsp;&nbsp;码：</b><input name="txtPassword" id="txtPassword" maxlength="20" type="password" class="inp-text" /><font color="#FF0000">*</font></li>';
    html += '<li style="text-align:center;"><input type="button"  class="inp-land02" value="提交" id="btnLogin" onclick="doLogin();" /></li>';
    html += '<li style="text-align:center;padding-top:20px;">还不是会员？<a href="javascript:ShowRegisterForm();" class="c-blue">点击注册</a>！</li>';
    html += '</ul>';

    if (window.location.href.indexOf('index.aspx') > 0)
        openDialog('用户登录', html);
    else
        openDialog('登录后才能继续……', html);
};

var doLogin = function() {
    var userName = $.trim($('#txtUserName').val());
    var userPass = $('#txtPassword').val();

    if (userName == '') {
        alert('请填写用户名！');
        $('#txtUserName').focus();
        return;
    }

    if (userPass == '') {
        alert('请填写密码！');
        $('#txtUserPass').focus();
        return;
    }

    $('#btnLogin').attr('disabled', 'disabled');

    $.ajax({
        type: 'post',
        url: 'ajax.ashx',
        dataType: 'json',
        data: { op: 'login', username: userName, userpass: userPass },
        success: function(msg) {
            alert(msg.Msg);
            $('#btnLogin').removeAttr('disabled');
            if (msg.Result == 1) {
                CloseDialog();
                
                window.location.href = window.location.href;
            }
        },
        error: function() {
            alert('系统异常，请稍有再试！');
        }
    });
};