function DealWithImg() {
                var width = 0;
                if (window.screen.width) {
                    width = window.screen.width;
                }
                else if (window.innerWidth) { width = window.innerWidth; }
                if (width > 0) {
                    var imgs = document.getElementsByTagName("img");
                    if (imgs.length > 0) {
                        for (var i = 0; i < imgs.length; i++) {
                            if (imgs[i].offsetWidth > width) {
                                imgs[i].style.width = "100%";
                                imgs[i].style.height = "auto";
                            }
                        }
                    }
                }
            }
            window.onload = DealWithImg;