function SetSize(obj, width, height)
{
    myImage = new Image();
    myImage.src = obj.src;
    if (myImage.width>0 && myImage.height>0)
    {
        var rate = 1;
        if (myImage.width>width || myImage.height>height)
        {
            if (width/myImage.width<height/myImage.height)
            {
                rate = width/myImage.width;
            }
            else
            {
                rate = height/myImage.height;
            }
        }
        if (window.navigator.appName == "Microsoft Internet Explorer")
        {
          obj.style.zoom = rate;
        }
        else
        {
          obj.width = myImage.width*rate;
          obj.height = myImage.height*rate;
        }
    }
}