var website = {};
website.gototop =
function () {
    $('html, body').animate({ scrollTop: 0 }, 'slow');
};

website.sharetosina =
function () {
    var _w = 16, _h = 16;
    var param = {
        url: location.href,
        type: '3',
        count: '', /**是否显示分享数，1显示(可选)*/
        appkey: '', /**您申请的应用appkey,显示分享来源(可选)*/
        title: '', /**分享的文字内容(可选，默认为所在页面的title)*/
        pic: '', /**分享图片的路径(可选)*/
        ralateUid: '', /**关联用户的UID，分享微博会@该用户(可选)*/
        rnd: new Date().valueOf()
    }
    var temp = [];
    for (var p in param) {
        temp.push(p + '=' + encodeURIComponent(param[p] || ''))
    }
    document.write('<iframe allowTransparency="true" frameborder="0" scrolling="no" src="http://hits.sinajs.cn/A1/weiboshare.html?' + temp.join('&') + '" width="' + _w + '" height="' + _h + '"></iframe>')
};

website.sharetoqq =
function () {
    var _t = encodeURI(document.title);
    var _url = encodeURIComponent(document.location);
    var _appkey = encodeURI("appkey"); //你从腾讯获得的appkey
    var _pic = encodeURI(''); //（例如：var _pic='图片url1|图片url2|图片url3....）
    var _site = ''; //你的网站地址
    var _u = 'http://v.t.qq.com/share/share.php?url=' + _url + '&appkey=' + _appkey + '&site=' + _site + '&pic=' + _pic + '&title=' + _t;
    window.open(_u, '', 'width=700, height=680, top=0, left=0, toolbar=no, menubar=no, scrollbars=no, location=yes, resizable=no, status=no');
}

//图片缩略图效果
function DrawImage(ImgD, FitWidth, FitHeight) {

    var image = new Image();
    image.src = ImgD.src;
    if (image.width > 0 && image.height > 0) {
        if (image.width / image.height >= FitWidth / FitHeight) {
            if (image.width > FitWidth) {
                ImgD.width = FitWidth;
                ImgD.height = (image.height * FitWidth) / image.width;
            } else {
                ImgD.width = image.width;
                ImgD.height = image.height;
            }
        } else {
            if (image.height > FitHeight) {
                ImgD.height = FitHeight;
                ImgD.width = (image.width * FitHeight) / image.height;
            } else {
                ImgD.width = image.width;
                ImgD.height = image.height;
            }
        }
    }
    //图片高小于设定的边框高时，让图片上下居中 padding 为内边距
    if (ImgD.height < FitHeight) {
        var paddH = parseInt((FitHeight - ImgD.height) / 2);
        ImgD.style.paddingTop = paddH + "px";
        ImgD.style.paddingBottom = paddH + "px";
    }
    //图片宽小于设定的边框宽时，让图片左右居中 padding 为内边距
    if (ImgD.width < FitWidth) {
        var paddW = parseInt((FitWidth - ImgD.width) / 2);
        ImgD.style.paddingRight = paddW + "px";
        ImgD.style.paddingLeft = paddW + "px";
    }
}