pass array through a function

Hi,
I'm trying to pass an array of classes through a function
and then access these the other side.
for instance (in psuedo code)

redim Array()
for 0 to array end fill with data (these happen to be classes)
but not sure that should make any difference?!)

someFunction(array())

function someFunction(data)
response.write data(0).property
end function

which doesn't work although data.property does if I specify which
part of the array I'm passing i.e. someFunction(array(1))

forgot to mention the above is using vbscript