I have this ul in my form
items are not form elements and will not be posted when the form is submitted. If you need to capture these values you can store them in a hidden form element.
Example to capture the text into a hidden field, add a hidden field.
And bind a click event to the li:
$("ul li.not_the_dot").click(function(){
$("#activeThing").val($(this).find("a").text());
});