(^|&)"+ name +"=([^&]*)(&|$)"),
            r = u.substr(u.indexOf("\?")+1).match(reg);
        return r!=null?r[2]:"";
    };
    (function(){
        var images = document.getElementsByTagName('img');
        var length = images.length;
        var max_width = getMaxWith();
        for (var i = 0; i < length; ++i) {
            var src_ = images[i].getAttribute('data-src');
            var realSrc = images[i].getAttribute('src');
            if (!src_ || realSrc) continue;
            var width_ = 1 * ima