function new_win (a_url, a_name, a_prop, a_width, a_height)
{
  if (a_url != "")
  {
    o_width = screen.width;
    o_height = screen.height;

	a_height="425"
	a_width="283"
	
    a_left = (o_width - a_width) / 2
    a_top = (o_height - a_height) / 2

    o_prop = ',width=' + a_width + ',height=' + a_height + ',left=' + a_left + ',top=' + a_top

    if (a_prop != "")
    {
      a_prop = a_prop + o_prop
    }
    else
    {
      a_prop = 'toolbar=0,scrollbars=1,status=0,menubar=0,resizable=1,width=630,height=460'
    }

    if (a_name = "")
    {
      a_name = 'Photo'
    }

    window.open (a_url, a_name, a_prop);
  }
}