ActionScript 3.0 :: Remove The First Item In Array?

So I'm getting strange results when trying to remove the first item in my array. When I remove the first item by using the shift() method, it deletes the whole array instead of just the first item.

Here is my code.

Code:
public class Main extends MovieClip
{
var deck:Array =

[Code]....

When I run the program it correctly shuffles the deck array and pushes all the shuffled items into the shuffledDeck Array. Then the first 26 cards get pushed into the playerDeck Array and the rest go to the computerDeck Array.

When the last bit of code runs, it correctly picks the first item in the playerDeck Array, but when I try to remove that item, it removes everything in playerDeck.