function OpenWindow(id)
{
    url = "./?m=map&s=" + id;
    wx  = 800;
    wy  = 600;
    x   = (screen.width  - wx) / 2;
    y   = (screen.height - wy) / 2;
    subWin = window.open(url, "new", "left="+x+", top="+y+", width="+wx+", height="+wy);
}