How to use LiveDocs

i tried to use LiveDocs every time i start programing, some time i find the solustion, many times i fail.

here is an example.

[SIZE=4]currentLabel[/SIZE]
currentLabel:String [read-only] **
Language Version : ** ActionScript 3.0 **
Player Version : ** Flash Player 9
The current label in which the playhead is located in the timeline of the MovieClip instance. If the current frame has no label, currentLabel is set to the name of the previous frame that includes a label. If the current frame and previous frames do not include a label, currentLabel returns null.

Implementation
// i know waht string mean and labels requre string value
//what is this line mean?

[COLOR=Red]public function get currentLabel():String[/COLOR]

Example
The following code illustrates how to access the currentLabel property of a MovieClip object named mc1: trace(mc1.currentLabel);

One more question:
if i want to make this effect:
i draw a recanqle as long menu, masked with smaller one. does the LiveDocs
will help me to achieve the following effect:

  • i want to detect the recanqle area so when i move my mouse vertically,
    up and down, the menu move in revarse way.
  • if the mouse out the recanqle, the menu stop

[SIZE=3]How can i reach what i want from [/SIZE][SIZE=4][SIZE=3]**[COLOR=Red]LiveDoc[/COLOR]
**I want to learn and use AS3 like you guys :hugegrin:

please help me[/SIZE]
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