$(document).ready(function() {
	var isiPad = navigator.userAgent.match(/iPad/i) != null;
	var isiPhone = navigator.userAgent.match(/iPhone/i) != null;
	
	if (isiPad || isiPhone) {  
		$('div#win').height($('div#text').height() + 200);
		$('.isFixed').addClass('isAbsolute');
		$('.isFixed').removeClass('isFixed');
	} else {
		bgHeight = ($('div#text').height() * 3);
		if (bgHeight > 1636) {
			$('div#bg').height(bgHeight);
		}
		$(window).scroll(function () { 
			var scrollY = $(window).scrollTop();
			$('div#text').css('top', '-' + (scrollY/2) + 'px');
		});
	}
});