Iterating through Dynamically created checkbox

$('#btnApprove').live("click", function () {//0

                var myarray = [];

                var i = 0;

                $('input:checkbox').each(function () {

                 

                    if (this.checked) {

                        myarray[i] = $(this).val();

                        i = i + 1;

                     

                    }

                });

                for (var j in myarray) {

                    alert(myarray[j]);

                }

            }); //0