function cart_num($p,$code) {
	var f = document.getElementById($p);
	var n = f.num.value - 0;
	if ($code == '-') {
		f.num.value = n - 1;
	}
	if($code == '+') {
		f.num.value = n + 1;
	}
	change_style($p,'update');
	f = document.getElementById('faddress');
	f.check_update.value = 1;
}

function change_style($p, $suf){
	document.getElementById($p + '_' + $suf).style.color = 'red';
	document.getElementById('cart_notice_update').style.visibility = 'visible';
}

function show_address(obj,errmsg){
	obj.disabled  = true;
	var f = obj.form;
	if (f.check_update.value == 1) {
		alert(errmsg);
		return false;
	} else {
		f.submit();
	} //
}

function submit_sendpay(obj){
	obj.form.btn_next.disabled = true;
	obj.form.submit();
}




function cart_selector(obj,v){
	var i = 0;
	for(i=0;i<obj.length;i++){
		if (obj[i].value == v) obj[i].checked = true;
	}
} //
function cart_disable(obj,v){
	var i = 0;
	for(i=0;i<obj.length;i++){
		if (obj[i].value != v) obj[i].disabled = true;
	}
} //
function cart_enable(obj){
	var i = 0;
	for(i=0;i<obj.length;i++){
		obj[i].disabled = false;
	}
} //

function daibiki_selector(o,v){
	cart_selector(o,v);
	cart_disable(o,v);
} //
function daibiki_deselector(o){
	cart_enable(o);
} //