https://www.apma.org/apmamain/includes/themes/murabootstrap3/poditools/js/jquery.jtruncate.js

1(function($) {
2    $.fn.jTruncate = function(h) {
3        var i = {
4            length: 300,
5            minTrail: 20,
6            moreText: "more",
7            lessText: "less",
8            ellipsisText: "...",
9            moreAni: "",
10            lessAni: ""
11        };
12        var h = $.extend(i, h);
13        return this.each(function() {
14            obj = $(this);
15            var a = obj.html();
16            if (a.length > h.length + h.minTrail) {
17                var b = a.indexOf(' ', h.length);
18                if (b != -1) {
19                    var b = a.indexOf(' ', h.length);
20                    var c = a.substring(0, b);
21                    var d = a.substring(b, a.length - 1);
22                    obj.html(c + '<span class="truncate_ellipsis">' + h.ellipsisText + '</span>' + '<span class="truncate_more">' + d + '</span>');
23                    obj.find('.truncate_more').css("display", "none");
24                    obj.append('<div class="clearboth">' + '<a href="#" class="truncate_more_link">' + h.moreText + '</a>' + '</div>');
25                    var e = $('.truncate_more_link', obj);
26                    var f = $('.truncate_more', obj);
27                    var g = $('.truncate_ellipsis', obj);
28                    e.click(function() {
29                        if (e.text() == h.moreText) {
30                            f.show(h.moreAni);
31                            e.text(h.lessText);
32                            g.css("display", "none");
33                            f.css("display", "inline");
34                        } else {
35                            f.hide(h.lessAni);
36                            e.text(h.moreText);
37                            g.css("display", "inline");
38                        }
39                        return false
40                    })
41                }
42            }
43        })
44    }
45})(jQuery);