title: Event listener for multiple elements - jQuery
body: <p>In the ASP MVC page I'm currently working on, the values of three input fields determine the value of a fourth. Zip code, state code, and something else called a Chanel Code will determine what the value of the fourth field, called the Territory Code, will be. </p>
  
  <p>I just started learning jQuery a couple weeks ago, so I would first think you could put a <code>.change</code> event that checks for values in the other two fields and, if they exists, call a separate method that compares the three and determines the Territory code. However, I'm wondering if there is a more elegant way to approach this since it seems like writing a lot of the same code in different places. </p>