title: Detecting if javascript is enabled with hidden form field
body: <p>It may seem like a repeat question, but I have not found an appropriate answer in the hundreds of answers about detecting whether or not javascript is enabled.
  My home page will have a form that requires a zip code to be entered. If the entered zip code is in more than one county, then the visitor will be returned a page to select their state, and then their county. If they have js enabled I can provide them with a nice dynamic dependent drop-down menu of counties once they select a state. Without js I would have to return another page with the county options. 
  The home page doesn't need js. Is there a way to use a hidden field in the zip code entry form that would let the next page know if js is enabled? </p>