DropDown AS3 Class. DropDown class is a tool for your website to display either an "upward" or "downward" opening tool to display links on your website. These links can either be URL links, or gotoAndPlay links, and these links can easily be set inside the XML document that controls all of the boxes. You can create as many boxes as you want inside the XML and put them anywhere you want on the stage through xLocation and yLocation inside the XML for each box. All text, font sizes, and font families can be set inside the XML, as well as all of the rollOver, rolllOut, and border colors.