[jquery] jQuery load first 3 elements, click "load more" to display next 5 elements

I have an unordered list:

<ul id="myList"></ul>
<div id="loadMore">Load more</div>

I wish to populate this list with list items from another HTML file:

<li>One</li>
<li>Two</li>
<li>Three</li>
<li>Four</li>
<li>Five</li>
<li>Six</li>
<li>Seven</li>
<li>Eight</li>
<li>Nine</li>
<li>Ten</li>
<li>Eleven</li>
<li>Twelve</li>
<li>Thirteen</li>
<li>Fourteen</li>
<li>Fifteen</li>

I want to load the first 3 list items, then show the next 5 items when the user clicks the "load more" div:

$(document).ready(function () {
    // Load the first 3 list items from another HTML file
    //$('#myList').load('externalList.html li:lt(3)');
    $('#myList li:lt(3)').show();
    $('#loadMore').click(function () {
        $('#myList li:lt(10)').show();
    });
    $('#showLess').click(function () {
        $('#myList li').not(':lt(3)').hide();
    });
});

I need help though, as I would like the "load more" to show the next 5 list items, but if there are more list items within the HTML file, to again display the "load more" div and allow users to display the next 5 items, repeating this until the entire list is displayed.

How can I best achieve this?

I have created the following jsfiddle: http://jsfiddle.net/nFd7C/

Simple and with little changes. And also hide load more when entire list is loaded.

jsFiddle here.

$(document).ready(function () {
    // Load the first 3 list items from another HTML file
    //$('#myList').load('externalList.html li:lt(3)');
    $('#myList li:lt(3)').show();
    $('#showLess').hide();
    var items =  25;
    var shown =  3;
    $('#loadMore').click(function () {
        $('#showLess').show();
        shown = $('#myList li:visible').size()+5;
        if(shown< items) {$('#myList li:lt('+shown+')').show();}
        else {$('#myList li:lt('+items+')').show();
             $('#loadMore').hide();
             }
    });
    $('#showLess').click(function () {
        $('#myList li').not(':lt(3)').hide();
    });
});

The expression $(document).ready(function() deprecated in jQuery3.

See working fiddle with jQuery 3 here

Take into account I didn't include the showless button.

Here's the code:

JS

$(function () {
    x=3;
    $('#myList li').slice(0, 3).show();
    $('#loadMore').on('click', function (e) {
        e.preventDefault();
        x = x+5;
        $('#myList li').slice(0, x).slideDown();
    });
});

CSS

#myList li{display:none;
}
#loadMore {
    color:green;
    cursor:pointer;
}
#loadMore:hover {
    color:black;
}