The parallax function is located in app/js/script.js and can be disabled by commenting the line this.enableParallax(); from init funtion.

If you want to enable the parallax on an element you will need to follow the markup:

 <div class="parallax-window" data-parallax="scroll" data-image-src="images/your_image.jpg"></div>

In the above sample code the “data-image-src” attribute specify the image which will be applied the parallax effect.