使用隐藏的输入元素向php脚本发布动态jquery数组

I have a list box where users can Add, Delete and Update and Save the list. Once clicked on the Save button I am doing a call to the jquery to build the array of elements in the list box and then doing a POST using a hidden INPUT elememt. But I am getting an empty array the PHP POST. Here is the jqueryI have a list box where users can Add, Delete a