Text Summary jQuery Plug-in

jQuery.textSummary.js

$.fn.textSummary = function (options, callback) {
	var settings = {
		maxlength: 150,
		morechar: "…"
	};

	$.extend(true, settings, options);

	return this.each(function () {
		var $context = $(this).hide().append($('<a>', {
			"class": "showless",
			href: "#",
			text: "(less)",
			click: function (e) {
				e.preventDefault();
				$context.hide();
			}
		}));
		var contentChunks = $context.html().split(' ');
		var summarytext = new String();
		var exceeded = false;
		$.each(contentChunks, function (i, v) {
			if ((summarytext.length + v.length <= settings.maxlength) && !exceeded) {
				if (i > 0) {
					summarytext += ' ';
				}
				summarytext += v;
			} else {
				exceeded = true;
			}
		});
		var $summary = $('<p>', {
			"class": "announcement-summary"
		}).html(summarytext + settings.morechar).insertBefore($context);
		if ($context.html().length > settings.maxlength) {
			$summary.append($('<a>', {
				"class": "showmore",
				href: "#",
				text: "(more)",
				click: function (e) {
					e.preventDefault();
					$context.show();
				}
			}));
		}
		if ($.isFunction(callback)) { callback(); }
	});
};