Javascript Swipe/Slider sample

Discussion created by mfalade on May 5, 2014
I am new to ArcGIS API for JavaScript and I am hoping some one has done something along the lines of a web map application that has a swipe/slider that reveals or fades in/out and underlying map. 

Below are links to two examples of what I am looking for.  I will appreciate any assistance or sample code for accomplishing it.  Thank you.