Declaring / Using Array Of Arrays

(the "code" below is pseudo code, just to get the idea across)

Here's what I currently have:

var bill = new array[20];
var sam = new array[20];
var nancy = new array[20];
var Oscar = new array[20];

I'm assigning objects to them (ie Oscar[5] = new objLabel() This seems like a kluge, however. Here's what I'd like (again, pseudo-code)

var Objects = {bill:null; sam:null; nancy:null; Oscar:null};
var theObject = new Array of Objects[20];
// yes: i know that's wrong... and that's the part I'm having trouble with

so that I can do something like:

[Code]....

Just seems to me that keeping a single array of multiple objects is likely to be less error-prone than multiple arrays of single objects... But I don't have the syntax right... or can it be done in JS? If it's doable, would someone be kind enough to show me how to declare and access that example?