MACROMEDIA FLASH 8-FLASH LITE 2.X ACTIONSCRIPT LANGUAGE Reference page 26

Initialization actions execute only once when a SWF file plays; use them for one-time
initializations, such as class definition and registration.
Availability: ActionScript 1.0; Flash Lite 2.0
Parameters
- A non-negative integer that specifies the execution order of blocks of
order
code. This is an optional parameter. You must specify the value by using an integer literal
(only decimal—not hexidecimal—values are allowed), and not by using a variable. If you
include multiple
#initclip
last value specified in that movie clip symbol for all
order
Example
In the following example, ActionScript is placed on Frame 1 inside a movie clip instance. A
variables.txt text file is placed in the same directory.
#initclip
trace("initializing app");
var variables:LoadVars = new LoadVars();
variables.load("variables.txt");
variables.onLoad = function(success:Boolean) {
trace("variables loaded:"+success);
if (success) {
for (i in variables) {
trace("variables."+i+" = "+variables[i]);
}
}
};
#endinitclip
26 ActionScript language elements
blocks in a single movie clip symbol, then the compiler uses the
#initclip
blocks in that symbol.
#initclip