I have a global variable...

Code:
var myArray;
var aString="1,2,3";
I know i could populate myArray...

Code:
myArray=aString.split(",");
But myArray should be an array of arrays. If i try this...

Code:
myArray[0]=aString.split(",");
My javascript won't run. If i attempt to fix it by declaring
Code:
myArray=[];
globally, it still won't run.

What is the correct syntax for this?