$(document).ready(function() {
	var $mobiles2 = $('#mobiles2 div');
	var $mobiles1 = $('#mobiles1 div');
	
	$(window).scroll(function() {
		$mobiles2.stop().animate({
			'marginTop' : -($(window).scrollTop()) + 'px'
		}, { queue:false, duration:3000, easing:'easeOutCirc'});
		$mobiles1.stop().animate({
			'marginTop' : -($(window).scrollTop() / 10) + 'px'
		}, { queue:false, duration:3000, easing:'easeOutCirc'});
	});
});