instance targeting syntax error

I'm designing a movie that will read some xml file info and build a bar chart from the data within. Basically my actionscript code works up to the point of me animating the bar chart bars.

Basically i've written a function that takes the relevant info (stored in an array) and then tells the bar (movie clip) elements to tween the y-axis movement. In principle this should work, however I keep getting a syntax error as soon as I include the statements below:

function buildBar(myArray, myloop) {
      switch (myloop) {
      case 0 :
            //day 1 bar
            //set max bar limit
            var barStart = _root.day1.90bar._y;
            var bar90max = myArray["opl90"];
            var bar123max = myArray["oml123"];
            var bar124max = myArray["oml124"];
            moveForward(this.day1.90bar,barStart,bar90max);//90bar,barStart,bar90max);
            break;
      }
}
---------THE ERROR MESSAGE --------
**Error** Scene=Scene 1, layer=Layer 1, frame=1:Line 18: Syntax error.
                 var barStart = _root.day1.90bar._y;

The script always hangs on where I target the instance i.e. _root.day1.90bar blah blah. As soon as I take out any reference to an instance the code compiles fine.

Any ideas on what could be going wrong here?
2ndeAsked:
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ch2Connect With a Mentor Commented:
You cannot use numbers at the begining in actionscript.

90bar should look like bar90
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2ndeAuthor Commented:
....? if that works, i'm gonna fling myself off the nearest building ...
0
 
2ndeAuthor Commented:
Dear God....... thanks a bunch mate, u just saved anotha soul....
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ch2Commented:
You are welcome :)
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