jQuery(document).ready(function($){
	// browser window scroll (in pixels) after which the "back to top" link is shown
	var offset = 300,
		//browser window scroll (in pixels) after which the "back to top" link opacity is reduced
		offset_opacity = 1200,
		//duration of the top scrolling animation (in ms)
		scroll_top_duration = 700,
		//grab the "back to top" link
		$back_to_top = $('.cd-top');

	//hide or show the "back to top" link
	$(window).scroll(function(){
		( $(this).scrollTop() > offset ) ? $back_to_top.addClass('cd-is-visible') : $back_to_top.removeClass('cd-is-visible cd-fade-out');
		if( $(this).scrollTop() > offset_opacity ) { 
			$back_to_top.addClass('cd-fade-out');
		}
	});

	//smooth scroll to top
	$back_to_top.on('click', function(event){
		event.preventDefault();
		$('body,html').animate({
			scrollTop: 0 ,
		 	}, scroll_top_duration
		);
	});

});

$(function() {

	// Cache the window object
	var $window = $(window);

	// Parallax background effect
	$('div[data-type="background"]').each(function() {

		var $bgobj =  $(this); //assining the object

		$(window).scroll(function() {

			//scroll the background at var speed
			// the yPos is a negative value because we're scrolling UP!

			var yPos = -($window.scrollTop() / $bgobj.data('speed'));

			// Put together our final background position
			var coords = '50% ' + yPos +'px';

			// Move the background
			$bgobj.css({ backgroundPosition: coords });
		
		}); // end window scroll
	});
});