function check_have_children() {
	if($("#have_children").attr("checked")) {
		$("#frame_count_children").show();
	} else {
		$("#frame_count_children").hide();
	}
}

function proc_count_children() {
	if ($("#count_children").val() < 0) {
		$("#count_children").val("1");
	}
	cnt_rec = $("#count_children").val();
	if (cnt_rec <= 0) cnt_rec = 1;
	if (cnt_rec >= 12) cnt_rec = 12;
	var count_item_rec = $("tbody[@id^=rec_data_children_]").size();

	if (count_item_rec > cnt_rec) {
		$("tbody[@id^=rec_data_children_]").each(function(i) {
			if (i >= cnt_rec) $(this).remove();
		});
	} else if (count_item_rec < cnt_rec) {
		limit = (cnt_rec - count_item_rec);
		for (i = 1; i <= limit; i++) {
			$("#rec_data_children_"+count_item_rec).clone().insertAfter("#rec_data_children_"+count_item_rec).attr("id", "rec_data_children_"+(count_item_rec+1));
			$("#rec_data_children_"+(count_item_rec+1)).find("select[@name^=arr_data_children]").each(function(i) {
				$(this).attr("name", str_replace(count_item_rec, (count_item_rec+1), $(this).attr("name")));
			});
			count_item_rec += 1;
		}
	}
	//$("tbody[@id^=rec_data_children_]").each(function(i)) {
	//	count_item_rec++;
	//};
}
function str_replace(search, replace, subject) {
    return subject.split(search).join(replace);
}