// JavaScript Document
function proDownImage(ImgD, proMaxWidth, proMaxHeight) {
    var image = new Image();
    image.src = ImgD.src;
    if (image.width > 0 && image.height > 0) {
        var rate = (proMaxWidth / image.width < proMaxHeight / image.height) ? proMaxWidth / image.width : proMaxHeight / image.height;
        if (rate <= 1) {
            ImgD.width = image.width * rate;
            ImgD.height = image.height * rate;
        }
        else {
            ImgD.width = image.width;
            ImgD.height = image.height;
        }
    }
}