var css = '/webcnt/s/css/common/iphone.css'; // iPhone用読み込ませるCSSパス
var ipad_css = '/webcnt/s/css/common/ipad.css'; // iPad用読み込ませるCSSパス

var _ua = navigator.userAgent;

if(_ua.indexOf('iPhone') > 0 ||
_ua.indexOf('iPod') > 0){
	document.write('<link href="'+css+'" rel="stylesheet" type="text/css" media="all" />');
}else if(_ua.indexOf('iPad') > 0){
	document.write('<link href="'+ipad_css+'" rel="stylesheet" type="text/css" media="all" />');
}