var is_iphone = navigator.userAgent.indexOf("iPhone", 0);
var is_ipod = navigator.userAgent.indexOf("iPod", 0);
if ((is_iphone & is_ipod) >-1) {
	document.write("<p class='iNav'><a href='/iphone/'>iPhoneサイトに戻る</a></p>");
	}
else{
	document.write("");
}