gitting a collection to all DIV elms working in all browsers

Is there a way of getting a collection to all DIV elements on a website that works in all (most) browsers?

Document.getElementsByTagName('div')

That works in ff too?

Tias

Does javascript have hash lists?

No

That allows strings as indexes

But you can create objects which work similarly

how do i define an object

Simplest way is var x = { 'key' : value, 'key2' : value2 };