function getCookie (c_name) {
	var i,k,v,cookie,cookies = document.cookie.split(";");
	for (i=0;i<cookies.length;i++) {
		var cookie = cookies[i];
		v = cookie.split ("=");
		k = v.shift ().replace (/^\s+|\s+$/g,"");
		v = v.join ("=");
		if (k == c_name) {
			return unescape (v);
		}
	}
}

function setCookie(c_name,value,exdays) {
	var exdate = new Date();
	exdate.setDate (exdate.getDate () + exdays);
	var c_value = escape(value) + ((exdays == null) ? "" : "; domain=.deepapple.com; path=/; expires="+exdate.toUTCString());
	document.cookie = c_name + "=" + c_value;
}

document.addEventListener ("DOMContentLoaded", function () {
	var mobileUrl = "http://deepapple.com/a/ios.html";
	if (navigator.userAgent.match (/webkit.*mobile/i)) {
		var useWebKit = getCookie ("webkit");
		if (useWebKit == 0) {
			return;
		} else if (useWebKit == 1) {
			window.location = mobileUrl; // mobile version
		} else {
			var answer = confirm ("Перейти на мобильную версию?");
			if (answer) {
				setCookie ("webkit", 1, 365*2);
				window.location = mobileUrl; // mobile version
			} else {
				setCookie ("webkit", 0, 365*2);
			}
		}
	}
}, false);