var mapImage = new Array;
	
	for(i=0;i<=10;i++){
		mapImage[i]=new Image();
	}
	
	mapImage[0].src = "img/index_map.jpg";
	mapImage[1].src = "img/index_map_hokkaido.jpg";
	mapImage[2].src = "img/index_map_tohoku.jpg";
	mapImage[3].src = "img/index_map_kanto.jpg";
	mapImage[4].src = "img/index_map_koshinetsu.jpg";
	mapImage[5].src = "img/index_map_hokuriku.jpg";
	mapImage[6].src = "img/index_map_tokai.jpg";
	mapImage[7].src = "img/index_map_kansai.jpg";
	mapImage[8].src = "img/index_map_chugoku.jpg";
	mapImage[9].src = "img/index_map_shikoku.jpg";
	mapImage[10].src = "img/index_map_kyushu.jpg";
	

function mapAct(num){
	if(num==0){
		document.images['areaMapImage'].src = mapImage[0].src;
	}else{
		document.images['areaMapImage'].src = mapImage[num].src;	
	}
}