[Moo] each error on IE

[Shrike]

Hello,

can you help me to solve the IE error on this script?

http://mooshell.net/gYxKu/

no errors with firefox or chrome

var array0 = new Array();
array0[0] = '00';
array0[1] = '01';

var array1 = new Array();
array1[0] = '10';
array1[1] = '11';

var test_array = new Array();

test_array[0] = array0;
test_array[1] = array1;

delete test_array[0];

test_array.each(function(items, row){

        items.each(function(i, r){ // IE error

        alert(i);

        });

});