function load_small_genre(obj){
	var form = obj.form;
	var large_genre = "genre_"+(form.large_genre.options[form.large_genre.selectedIndex].value);
	
	if(large_genre != "genre_0"){
	
		var small_genre_list = new Object();
		small_genre_list = SMALL_GENRE_ID_LIST[large_genre];

		var length = small_genre_list.length;

		form.small_genre.length=length+1;

		//弟１要素の設定
		form.small_genre.options[0].text = "中ジャンルを選択"; 
		form.small_genre.options[0].value = 0;


		for (var cnt = 0 ;cnt < length ;cnt++) {
			form.small_genre.options[cnt+1].text = SMALL_GENRE_NAME_LIST[large_genre][cnt];
			form.small_genre.options[cnt+1].value= SMALL_GENRE_ID_LIST[large_genre][cnt];
		}
	}else{
	
		form.small_genre.length=1;

		//弟１要素の設定
		form.small_genre.options[0].text = "中ジャンルを選択"; 
		form.small_genre.options[0].value = 0;
	}
	form.small_genre.options[0].selected = true ;
}