Convert as2 to as3 issue dynamic identifier

1

I’m trying to remake a project that i did earlier in as2.
Now i’m trying to build it in AS3.

It was a simple tool to convert text to hieroglyps.
In the library I have all the different hieroglyfs and they are exported for actionscript with identifiers a,b,c,d,…

When i used AS2 i could accomplish this with this simple function


function convertWord(word){
 for(i=0;i<word.length;i++){
     mc = this.attachMovie(word.substr(i,1), "char"+i,i)
     mc._x = 25 + (i*15)
  }
}

But i don’t find such an easy way in as3.
How can i use a string variable as identifier to put a symbol on the stage.