table to array

function tableToArray (table) {
    var rows = table.rows;
    var cols = table.rows[0].cells.length;
    var rowArray = [];
    var rowData = [];
    var cellData = [];
    for (var i = 0; i < rows.length; i++) {
        rowData = [];
        for (var j = 0; j < cols; j++) {
            rowData.push(rows[i].cells[j].innerHTML);
        }
        rowArray.push(rowData);
    }
    return rowArray;
}