function setStyle() {void(0);}

function rndImg(){
//var img=new Array('a','b','c','d','e')
var img=new Array('a_en','b_en','c_en','d_en','m');
month = (new Date()).getMonth()+1;
switch (month)
{
	case 3  :
	case 4  :
		img[img.length] = 'i';//½Õ
	break;
	
	case 5  :
	case 6  :
	case 7  :
	case 8  :
		img[img.length] = 'l';//²Æ
	break;
	
	case 9  :
	case 10 :
	case 11 :
		img[img.length] = 'j';//½©
	break;
	
	case 12 :
	case 1  :
	case 2  :
		img[img.length] = 'k';//Åß
	break;
}
chImg=Math.floor(Math.random()*img.length);
document.images['img01'].src='./en/images/top_img01'+img[chImg]+'.jpg';
}

function header_rndImg_en(){
//var img=new Array('a')
//var img=new Array('a','b','c','d','e')
var img=new Array('a_en','b_en','c_en','d_en','j');
month = (new Date()).getMonth()+1;
switch (month)
{
	case 3  :
	case 4  :
		img[img.length] = 'f';//½Õ
	break;
	
	case 5  :
	case 6  :
	case 7  :
	case 8  :
		img[img.length] = 'g';//²Æ
	break;
	
	case 9  :
	case 10 :
	case 11 :
		img[img.length] = 'h';//½©
	break;
	
	case 12 :
	case 1  :
	case 2  :
		img[img.length] = 'i';//Åß
	break;
	
}
chImg=Math.floor(Math.random()*img.length);
document.images['himg01_en'].src='./en/images/header_img01'+img[chImg]+'.jpg';
}


function ImgChange(imgNum,imgSrc) {
	document.images[imgNum].src = imgSrc;
}