How to Access/Manipulate HTML Elements/Javascript in Silverlight

Introduction: Interacting between HTML and ASP.NET has been one of the most common coding scenarios we have come across; i.e. accessing HTMLl elements and calling JavaScript from code behind. I recently came across a situation where I wanted to add Silverlight content to an existing page and allow the HTML and Silverlight portions of the page to interact. When we need this interaction: So let us