function change_season()
{
var pict= new Array(40) ;
var	sel ;
var a ;

var today = new Date() ;
var w = today.getDay() ;
var m = today.getMonth() ;
var t = today.getHours() ;
var a = today.getDate() ;
var wDay = today.getDay();

 pict[0] = "hukusuke.gif";
 pict[1] = "0701rink.gif" ;
 pict[2] = "0504ohinasama.gif" ; 
 pict[3] = "acceluguisu.gif" ; 
 pict[4] = "koinobori.gif" ; 
 pict[5] = "katatumuri.gif" ; 
 pict[6] = "asagao.gif" ; 
 pict[7] = "suika2.gif" ; 
 pict[8] = "kosmos.gif" ; 
 pict[9] = "hananonaka.gif" ; 
 pict[10] = "kaki.gif" ; 
 pict[11] = "santa-mpc.gif" ; 
 pict[12] = "MPC-tri.gif" ; 

pict[20] = "mpc-aki.gif" ;
pict[23] = "sakurahubuki.gif"
pict[24] = "tubame.gif" ; 
pict[26] = "kingyo.gif" ; 
pict[27] = "surfbord2.gif" ; 
pict[30] = "on_rei.gif" ;
pict[31] = "manekineko.gif" ;

if( t > 9 && t < 22)
{

switch( m)
{
case 0 :
if(a == 1 || a == 2 || a == 3 || a == 4  ){ w = 0 ; break ;}
else{ w = 1 ; } ;break ;
case 1 :
if( a > 15 ){ w = 2 ; break ;} ;
     w = 1 ; break ;

case 2 :

if( a > 20 ){ w = 23 ; break ;} ;
if( a > 3 ){ w = 3 ; break ;} ;
w = 2 ; break ;
case 3 : 
if( a < 8 ){ w = 23 ; break ;} ;
if( a < 20 ){ w = 4 ; break ;} ;
w = 3 ; break ;

case 4 :
if( a > 5 ){ w = 24 ; break ;} ;
w = 4 ; break ;

case 5 :
	w = 5 ; break ;

case 6 :
if( a > 15 ){ w = 26 ; break ;} ;
	w = 6 ; break ;
case 7 :
// summer vacation set
if( a < 18 ){ w = 27 ; break ;} ;
w = 7 ; break ;

case 8 :
w = 8 ; break ;

case 9:
w = 9 ; break ;

case 10:
if( a < 15 ){ w = 20 ; break ;} ;
w = 10 ; break ;

case 11 :

if( a == 31  ){ w = 30 ; break ;} ;
if( a == 24 || a== 25 ){ w = 11 ; break ;} ;
if( a > 10 ){ w = 12 ; break ; } ;
w = 10 ;
break ;

default : ;
w = 20 ;
}
}else{ w = 31 ; }


document.write("<IMG src=../walkabout/",pict[w],">") ;
}