I have an array called iarray(), whihc contains the members iarray(0) to array(4). is there a way of sorting out the higher (in terms of the array) array to the lower?

i.e. The arrays are randomly placed in the following order:
iarray(3)
iarray(2)
iarray(4)
iarray(1)
iarray(0)

I would like the code to sort it so it goes from iarray(4) to iarray(0),and then put the indexes (EDIT: indicies) into a new array called order()