//文字コードはEUCで保存すること
function date_chg()
{
	document.frm.action = "ZIS0200.php";
	document.frm.method="POST";
	document.frm.submit();
}
function move_navi(flg){
	nowdate = new Date();
	y = document.frm.ZIS_cboY.value;
	m = document.frm.ZIS_cboM.value;

	if(flg == 0){
		y = nowdate.getFullYear();;
		m = nowdate.getMonth() + 1;;
	}else if(flg == 1){
		m--;
		if(m < 1){
			m = 12;
			y--;
		}
	}else if(flg == 2){
		m++;
		if(m > 12){
			m = 1;
			y++;
		}			
	}

	document.frm.ZIS_cboY.value = y;
	document.frm.ZIS_cboM.value = m;
	date_chg();
}