how to remove anchor or add them in blank ul li using jQuery

I want to add an anchor in li and want to 开发者_如何学Goremove from another li but don't know how it can be done. Does anyone know how this is possible using jQuery?

add them in blank

<li>
<!-- i think to add the anchor here by many attribute --->
</li>

<li>
<!-- this anchor how i can remove -- >
<a></a>
</li>

the logic i want to do something like

when event fire :-

var cur = cur; // current is variable where i store li who i want to do.

how i can remove them from it and how i can add if they really have not anchor on them.

It's a bit unclear exactly what the requirement is, so some handy tips and a couple of examples to get you going:

1) To get a jQuery object for an element, use $ (aka jQuery) and a CSS3 selector:

var $element = $("CSS3_selector_for_element");

2) To remove an element, use remove:

$element.remove();

3) To detach an element (so you can put it back later without losing its event handlers, etc), use detach:

$element.detach();

4) To add or move an element, use append, appendTo, before, insertBefore, after, insertAfter, or probably a few others (if you're moving it from somewhere else, no need to detach it first):

$element.appendTo(target);

or

jquery_object_for_target.append($element);

Very basic example of moving lis containing anchors from one list to another when the anchor is clicked:

HTML:

<ul id='first'>
  <li><a href='#'>Anchor One</a></li>
  <li><a href='#'>Anchor Two</a></li>
  <li><a href='#'>Anchor Three</a></li>
</ul>
<hr>
<ul id='second'>
  <li><a href='#'>Anchor Four</a></li>
  <li><a href='#'>Anchor Five</a></li>
  <li><a href='#'>Anchor Six</a></li>
</ul>

JavaScript using jQuery:

jQuery(function($) {

  $("a").click(function() {
    var $this, li, list, target;

    $this = $(this);
    li = $this.closest('li');
    list = li.closest('ul');
    target = list[0].id == 'first' ? '#second' : '#first';
    $(target).append(li);

    return false;
  });

});​

Live copy

If you prefer not to figure out where the li is when the event first, you can use delegate to watch the anchors inside a specific list (the HTML is the same as the above):

jQuery(function($) {

  $("#first").delegate('a', 'click', function() {
    return moveContainingListItemTo(this, '#second');
  });
  $("#second").delegate('a', 'click', function() {
    return moveContainingListItemTo(this, '#first');
  });

  function moveContainingListItemTo(element, target) {

    $(element).closest('li').appendTo(target);

    return false;
  }

});​

Live copy

give some class name to that li and the do something like this...

$('li ').live('click', function () {

 if(!jQuery("li').hasClass('selected')){

            jQuery(this).addClass('selected').append('<a id="anchor">blah...</a>')
    }else{
             jQuery(this).removeClass('selected').find('a').remove();
}
});