jquery delete array from the textarea

Question

How can I use jQuery to delete the text in the textarea that gets from the input_one when it not checked (one_1 one_3 one_4) ,and when it checked add it into textarea again?

The code is below:

<div id="input_one">
  <input type="checkbox" checked value="one">
  <input type="checkbox" checked value="one_1">
  <input type="checkbox" value="one_2">
  <input type="checkbox" checked value="one_3">
  <input type="checkbox" checked value="one_4">
</div>
<div id="input_two">
  <input type="checkbox" value="two_1">
  <input type="checkbox" checked value="two_2">
  <input type="checkbox" checked value="two_3">
  <input type="checkbox" checked value="two_4">
  <input type="checkbox" checked value="two_5">
</div>

<div id="t_area">
  <textarea id="get_checked">
    get from the two above checkbox if it checked such
    as "one_1 one_2 one_3 one_4 two_2 two_3 two_4 two_5"
  </textarea>
</div>

Answer 1

Umn, this is very similar to this question:

http://stackoverflow.com/questions/786142/how-to-retrieve-checkboxes-values-in-jquery