function form_advance(level){
	switch(level){
		case 0:
			if ($("notifyY").checked){
				none("verify_div");
				block("notify_div");
			}else if ($("notifyN").checked){
				block("verify_div");
				none("notify_div");
			}else{
				none("verify_div");
				none("notify_div");
			}
		case 1:
			if ($("notifyY").checked){
				if ($("maint_form").notify_verbal.checked || $("maint_form").notify_message.checked || $("maint_form").notify_email.checked)
					block("call_type");
				else
					none("call_type");
			}else{
				if ($("maint_form").verify.checked)
					block("call_type");
				else
					none("call_type");
			}
		case 2:
			if ($("maint_form").accept.checked){
				block("finish_form");
				none("cancel_form");
			}else{
				none("finish_form");
				block("cancel_form");
			}
		default:
	}
}
function reset_form(){
	$("maint_form").reset();
	form_advance(0);
}
function check_form(){
	if ($("finish_form").style['display'] != "block")
		return false;
}