Actions

These form the heart of your script and are usually considered to be any line that instructs Flash to do, set, create, change, load, or delete something.
The following are a couple of examples of actions from the sample script above:mugCost = 5.00;
cashRegister.gotoAndPlay (50);
Generally speaking, actions comprise most of the lines in a script that are within curly braces ({}) and usually separated by semicolons (see below).