if (screen.width > 1439) {

    function getimagewidth(url,callback){
        var img = new image();
        img.src = url;
        
        // 如果图片被缓存，则直接返回缓存数据
        if(img.complete){
            callback(img.width, img.height);
        }else{
                // 完全加载完毕的事件
            img.onload = function(){
            callback(img.width, img.height);
            }
        }
        
    }

    var culture_containboximgs = $('.culture_containbox').find('img');
    culture_containboximgs.each(function(){
        var imgw = $(this).attr('width');
        var imgsrc = $(this).attr("src");
        var _this = $(this);
        if(imgw == undefined){
            getimagewidth(imgsrc,function(w,h){
                _this.css('width',w);
            });
        }else{
            _this.css('width',imgw);
        }
    });
    
    var case_detail_contentimg = $('.case_detail_content').find('img');
    case_detail_contentimg.each(function(){
        var imgw = $(this).attr('width');
        var imgsrc = $(this).attr("src");
        var _this = $(this);
        if(imgw == undefined){
            getimagewidth(imgsrc,function(w,h){
                _this.css('width',w);
            });
        }else{
            _this.css('width',imgw);
        }
    });

    var productdetail_content = $('.productdetail_content').find('img');
    productdetail_content.each(function(){
        var imgw = $(this).attr('width');
        var imgsrc = $(this).attr("src");
        var _this = $(this);
        if(imgw == undefined){
            getimagewidth(imgsrc,function(w,h){
                _this.css('width',w);
            });
        }else{
            _this.css('width',imgw);
        }
    });
}