function DrawImage(ImgD,FitWidth,FitHeight) 
{ 
    var image=new Image(); 
    image.src=ImgD.src; 
    if(image.width>0 && image.height>0) 
    {
        if(image.width>FitWidth) 
        { 
            ImgD.width=FitWidth;
        }
        if(image.height>FitHeight)
        {
            ImgD.height=FitHeight;
        } 
    } 
}