(function($) {
	$(document).ready(function(){
	   // cache the window object
	   $window = $(window);
	 
	   $('section[data-type="background"]').each(function(){
		 // declare the variable to affect the defined data-type
		 var $scroll = $(this);
						 
		  $(window).scroll(function() {
			// HTML5 proves useful for helping with creating JS functions!
			// also, negative value because we're scrolling upwards                            
			var yPos = -($window.scrollTop() / $scroll.data('speed'));
			 
			// background position
			var coords = '50% '+ yPos + 'px';
	 
			// move the background
			$scroll.css({ backgroundPosition: coords });   
		  }); // end window scroll
	   });  // end section function
	}); // close out script

	/* Create HTML5 element for IE */
	document.createElement("section");
}) (jQuery);