function naviLink(obj_id,flg) {
	if (flg) {
		if(document.all){
			obj_id.parentElement.parentElement.style.backgroundColor = '#dd0000';
		}
		else if(document.styleSheets){
			obj_id.parentNode.parentNode.style.backgroundColor = '#dd0000';
		}
	}
	else {
		if(document.all){
			obj_id.parentElement.parentElement.style.backgroundColor = '#3d78c5';
		}
		else if(document.styleSheets){
			obj_id.parentNode.parentNode.style.backgroundColor = '#3d78c5';
		}
	}
}