<!--
	function make_month_day( form_name, parent_select, target_select ){

		var num = document.forms[form_name].elements[parent_select].selectedIndex;	//操作したリストの選択番号
		var obj = document.forms[form_name].elements[target_select].options		//変更先リスト

		obj.length = 0

		var last_day = 0;
		var i = 0;

		if( num == 0 ) obj[obj.length] = new Option( "--", "" );

		if( num == 2 ) last_day = 29;

		if( ( num == 1 ) || ( num == 3 ) || ( num == 5 ) || ( num == 7 ) || ( num == 8 ) || ( num == 10 ) || ( num == 12 ) ){
			last_day = 31;
		}

		if( ( num == 4 ) || ( num == 6 ) || ( num == 9 ) || ( num == 11 ) ){
			last_day = 30;
		}

		obj[obj.length] = new Option( "--" )

		for( i = 1; i < last_day + 1; i ++ ){
			obj[obj.length] = new Option( i );
		}
	}

	function make_selected( form_name, target_select, value ){
		var obj = document.forms[form_name].elements[target_select].options	//変更先SELECT

		var max_i = obj.length;

		for( i = 0; i < max_i; i++ ){
			if( document.forms[form_name].elements[target_select].options[i].text == value ){
				document.forms[form_name].elements[target_select].selectedIndex = i;
			}
		}

	}
//-->