A simple parallax from the source of together js.

togetherjs-parallax.js

// THE FOLLOWING CODE IS NOT MINE, WILL DO SOMETHING WITH IT LATER. CREDITS TO TOGETHERJS

$(document).ready(function(){
  
  // detect a mobile device
  var isMobile = {
      Android: function() {
          return navigator.userAgent.match(/Android/i);
      },
      BlackBerry: function() {
          return navigator.userAgent.match(/BlackBerry/i);
      },
      iOS: function() {
          return navigator.userAgent.match(/iPhone|iPad|iPod/i);
      },
      Opera: function() {
          return navigator.userAgent.match(/Opera Mini/i);
      },
      Windows: function() {
          return navigator.userAgent.match(/IEMobile/i);
      },
      any: function() {
          return (isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Opera() || isMobile.Windows());
      }
  };
  
	// Cache the Window object
	$window = $(window);
                
   $('section[data-type="background"]').each(function(){
     var $bgobj = $(this); // assigning the object
                    
      $(window).scroll(function() {
                    
		// Scroll the background at var speed
		// the yPos is a negative value because we're scrolling it UP!								
		var yPos = -($window.scrollTop() / $bgobj.data('speed')); 
		
		// Put together our final background position
		var coords = '50% '+ yPos + 'px';
		
		if (isMobile.any()) {
		  //remove parallax
		  var coords = '';
		}
		
		

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

 });	

});