function showHide(id_string_show,id_string_hide)
{
	id_array_show=id_string_show.split(" ");
	id_array_hide=id_string_hide.split(" ");

	//loop through ids you want to show
	if (id_array_show != "") {
		for(var i=0; i <id_array_show.length; i++) {
			id_box = document.getElementById(id_array_show[i]);
			if (id_box) {
				id_box.style.display="";
			}
		}
	}
	//loop through ids you want to hide
	if (id_array_hide != "") {
		for(var i=0; i <id_array_hide.length; i++) {
			id_box = document.getElementById(id_array_hide[i]);
			if (id_box) {
				id_box.style.display="none";
			}
		}
	}
}