function open_map(REF_ID, LANG)
{
	if( typeof(LANG) == 'undefined' ) LANG = 'french';

	remote=window.open('','legacarta','width='+(screen.width-10)+',height='+(screen.height-10)+',top=0,left=0,toolbar=no,scrollbars=no,resizable=no,menubar=no,status=no,directories=no,location=no,fullscreen=yes');
	remote.location.href='http://legacarta.net/maps/start.php?change_lang='+ LANG +'&ref=' + REF_ID;
	if(remote.opener == null) remote.opener=window;
	remote.opener.name="opener";
}

var focus_win = 0;