ActionScript 3.0 :: Turning String Into MovieClip Instance Name?

Jun 4, 2009

I found this code to turn strings into a movieClipInstanceName that exists within a known movieclip.
Code:
// CREATE THE STRING
var newString:String = "movieClipInstanceName";
//CHANGE THE ALPHA OF THE MOVIECLIP TO 0
this[newString].alpha = 0;

However, when using this code for a movieclip within a known movieclip...
Code:
mc1.this[newString].alpha = 0;
...or...
Code:
this["mc1"].this[newString].alpha = 0;
I get this error...
1084: Syntax error: expecting identifier before this.

Code:
this["mc1." + newString].alpha = 0;
...throws this error...
Error #1010: A term is undefined and has no properties.

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