How to access through index?

[webdeveloper]

Hi,

I have the following code:

var test = {
   arr : []   
};

function addItem()
{
    var p = {
                   a : 1,
                   b : 2
                };

    p.c = 3;

     test.arr.push(p);
}

function readItem()
{
     var tableObj = document.getElementById('tableId');
     var row, cell;     

     for( var i = 0; i < test.arr.length; i++ )
    {
        row = tableObj.insertRow(tableObj.length);
        for( var j = 0; j < )
       {
            cell = row.insertCell(j); 
            cell.innerHTML =  test.arr[i].a; // I am having problem adding test.arr[].a/b/c 
        }
    }
}

So at the line "cell.innerHTML = test.arr[i].a", I would actually like to index a/b/c into each cell created dynamically.

How can I achieve that?