trouble with multidimensional arrays in javascript unity 3.2

Unity Engine
1

I am having trouble declaring and using a 2 dimensional array in javascript using unity 3.3

var x2: int[,]; no error but then errors later
var x3:int[5,5]; //error excpecting semicolon at the end.

x2[4][4]=0;

Debug.Log(x2[4][4]); //error BCE0109: Array ‘self.x2’ is rank ‘2’, not rank ‘1’.and
type int does not support slicing.

So many errors? I’m following examples other people have posted about the multidimensional arrays in javascript in 3.2

Any ideas? thanks Dan

2 
var x2 : int[,];
function Awake()
{
    x2 = new int[5,5];
    x2[0,0] = 0;
}
3

x2[ ][ ] is the syntax for a 2D jagged array. x2[,] is the syntax for a standard 2D array.

var x3:int[5,5]; // incorrect syntax
var x3 = new int[5,5]; // works

–Eric