var touch = {};

touch.is_fullscreen = function ()
{
	return !! window.navigator.standalone;
};

touch.is_apple = function ()
{
	return /iPhone|iPod|iPad/.test ( window.navigator.userAgent );
};

touch.is_ipad = function ()
{
	return /iPad/.test ( window.navigator.userAgent );
};

touch.is_android = function ()
{
	return /Android/.test ( window.navigator.userAgent );
};

touch.get_page_size = function ()
{
	return [ window.innerWidth, window.innerHeight ];
};

touch.get_orientation = function ()
{
	var v = touch.get_page_size ();

	if ( v [ 0 ] > v [ 1 ] ) return "landscape";

	return "portrait";
};