// 季節によりバックグラウンドカラー＋背景イメージを変える

var spring = '4,1' ;
var summer = '7,1' ;
var autumn = '10,1' ;
var winter = '12,1' ;

var mybgcolor = '#F8F6E8'; // デフォルト＝春
var mybgfilename = 'bgimg_body_spring.gif';
var basehref = 'http://preview-arachne.com/san_oaks/';

var nowDay = new Date();

//テスト 1/2の例
//nowDay.setMonth( 1-1 );
//nowDay.setDate( 2 );


mySpring = new Array();
mySpring = spring.split(",");
mySummer = new Array();
mySummer = summer.split(",");
myAutumn = new Array();
myAutumn = autumn.split(",");
myWinter = new Array();
myWinter = winter.split(",");

changeDaySpring = new Date();
changeDaySpring.setMonth( mySpring[0]-1 );
changeDaySpring.setDate( mySpring[1] );

changeDaySummer = new Date();
changeDaySummer.setMonth( mySummer[0]-1 );
changeDaySummer.setDate( mySummer[1] );

changeDayAutumn = new Date();
changeDayAutumn.setMonth( myAutumn[0]-1 );
changeDayAutumn.setDate( myAutumn[1] );

changeDayWinter = new Date();
changeDayWinter.setMonth( myWinter[0]-1 );
changeDayWinter.setDate( myWinter[1] );


if ( nowDay >= changeDaySpring && nowDay < changeDaySummer  ) {
	
		mybgcolor = '#F8F6E8'; mybgfilename = 'bgimg_body_spring.gif';  // 春の時

} else if ( nowDay >= changeDaySummer && nowDay < changeDayAutumn  ) {
	
		mybgcolor = '#D8E8C8'; mybgfilename = 'bgimg_body_summer.gif';  // 夏の時

} else if ( nowDay >= changeDayAutumn && nowDay < changeDayWinter  ) {

		mybgcolor = '#CFAB98'; mybgfilename = 'bgimg_body_autumn.gif';  // 秋の時

} else if ( nowDay >= changeDayWinter || nowDay < changeDaySpring  ) {
	
		mybgcolor = '#C9E7EA'; mybgfilename = 'bgimg_body_winter.gif';  // 冬の時

}



document.write ( "<style type='text/css'><!--" );
document.write ( "body { background:url(" + basehref + "cmnimg/" + mybgfilename + ") repeat-y center " + mybgcolor + "; }" );
document.write ( "--></style>\n" );