Conditional Question Visibility Based on Answer Value

I am looking for code that hides certain questions until someone chooses a static value from one of the following: drop-down field, checkbox, or radio button. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Example of Drop-Down Text Question Question 1: What is your favorite color? Answer Values: Blue Green (if chosen, present question 2 and renumber all questions) Purple ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I would like to see a working version by those who bid on this project to assist me with my selection. Implementation instructions should be thoroughly documented in English, either in the code, or in a separate text file.