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Calling a specific Javascript array

This is probably an easy questions, but I'm a bit of a JavaScript newbie,

I have created and filled a bunch of arrays using an ASP loop. The arrays were created looking like this
var amount1 = new Array(250, 0)
var amount2 = new Array(500, 0)
var amount3 = new Array(0, 250)
...and so on

So, I want to call a specific array, based on a variable passed into the function (intSel). This variable will be used to select the correct array by providing the number after "amount". How do I concatenate this thing to return the values contained in the array itself, instead of just a string.

Right now I have a line that says:
document.getElementById('Debit0').value = "amount" + intSel + "[0]";

But of course that doesn't work and returns "amount2[0]", for example.
I want it to return 500.

Thanks for your help!
Dan

ASKER CERTIFIED SOLUTION

Zontar

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Zontar

Also, instead of

document.getElementById('Debit0').value = eval("amount" + intSel + "[0]");

you could use

document.getElementById('Debit0').value = window["amount" + intSel][0];

prodvided that amount1, amount2, etc. are defined as global variables and not as local to a function.

Schmeck

ASKER

Thanks Zontar...that's what I was looking for!

Zontar

Cool. No worries, Schmeck.

Technically, JavaScript doesn't support multi-dimensional arrays, but array elements can be of any type -- including arrays -- which makes that sort of a moot point. ;)

(Arrays of objects/associative arrays can also be handy at times when you need to roll your own data structures in a hurry.)