// JavaScript Document
    /*°´±ÈÀýÉú³ÉËõÂÔͼ*/
    function ImgAuto(MyPic, W, H) {
        var flag = false;
        var image = new Image();
        image.src = MyPic.src;
       
        if (image.width > 0 && image.height > 0) {
            flag = true;
            if (image.width / image.height >= W / H) {
                if (image.width > W) {
                    MyPic.width = W;
                    MyPic.height = (image.height * W) / image.width;
                }
                else {
                    MyPic.width = image.width;
                    MyPic.height = image.height;
                }
            }
            else {
                if (image.height > H) {
                    MyPic.height = H;
                    MyPic.width = (image.width * H) / image.height;
                }
                else {
                    MyPic.width = image.width;
                    MyPic.height = image.height;
                }
            }
        }
    }