How to convert these code to jquery plugin?
<p>This is my code and work properly, but I want to convert these code to a jquery plugin (mySlider). See <a href="http://spcktractor.com/demo.php" rel="nofollow">Demo</a>.     How to do?</p>

<pre><code>var _left = 1, _move = 0, _right = null; 
 _width = $('#main-slider li:first').width(), 
 _len = $('#main-slider li').size();

 $('#main-slider ul').width(_width*_len);
 $('#thmb-slider ul').width(_width*_len);

 var auto_slide = setInterval(feature_slider, 5000);

 function feature_slider(){
    if(_right == 0) { _right = null; _left = 1; }
    if(_left &gt; 4)  { _right = 4;  _left = 0 }

    _move = (_width*_left)*(-1);

    if(_right) {
        _right--;
        _move = (_width*_right)*(-1);
    }

    $('#main-slider ul')
    .css({'opacity':0})
    .animate({left:_move,'opacity':1},900,'swing');
    _left++;

 }

 $('#thmb-slider a').click(function(){
    _left = $(this).index('#thmb-slider a');
    clearInterval(auto_slide);
    feature_slider();
    auto_slide = setInterval(feature_slider, 5000);

    return false;
 });

 $('#main-slider ul').hover(function(){
    clearInterval(auto_slide);
    },function(){
    feature_slider();
    auto_slide = setInterval(feature_slider, 5000);
 });
</code></pre>
