<script>

 var moo = [[2,2,2,2],1,[3,3,3],4,5,[6,6]];


var sum = 0;
var sum1 = 0;
for (var i = 0; i < moo.length ; i++) {
        for (var j = 0; j < moo[i].length; j++) {
            if (typeof moo[i] == !"object" ) continue;
            sum1 += moo[i][j];
    }
    if (typeof moo[i] == "object" ) continue;
    sum += moo[i];
}
alert(sum);
alert(sum1);

 alert(sum+sum1);

</script>