I want to make a web page that has a drop down where people can select there state. Then once they do I want the page to change somehow not necessarily into a new page but so that it has another drop down so they can select their city. Then once they do that it shows the sales reps in their area. How exactly would I go about this? I'm good with html and css but beyond that I need assistance haha so any javascript explanations pertaining to this would be great!