What is a "hit" area?

[majora2007]

I was reading a tute on Navigation Circle That Stops On Mouse Over (#20). Then in step 8 it tells me to go to libary and Double-Click to open the button in its own editing area, and create a different color for the Over state. Also make sure to include a 'hit' area, then save. I looked for information on what a hit area is and I have no idea. I have Flash MX 2004, I you whould be so kind to tell me what a hit area is and where it is, I will be very grateful.
Thanks. :)

[JEBoothjr]

When you double-click on a button. You'll see a frame labeled "hit". This is the area that will detect when the mouse moves over it. Try experimenting with different shapes on that frame and you'll understand pretty quickly.

[SirShoelace]

yeah if you just leave it blank, flash will take all the other frames and pile them up for the hit area. I usually just leave it blank.

[majora2007]

Thanks a ton. I was trying to figure it out and I had no idea what I was doing. Thanks agian. I have another question what is a dynamic text box and how to you make one in the hit area.

[hognav2t]

dynamic text & input text are 2 text options that are selectable & editable
and they look sharp also.
2 create one, just use the type tool and turn ur text into a dynamic text
in the property window.