function move_menu(num)
{
	switch(num)

	{

	  case 1:window.location="index.html" ;break;

	  case 2:window.location="map-services.htm" ;break;

	  case 3:window.location="map_gallery.html" ;break;

	  case 4:window.location="SGI-staff.htm" ;break;

	  case 5:window.location="contact.htm" ;break;
	  
	}
}