Test in my blog (http://johndel.gr) the automatic brief generator of an article. It uses the TextTeaser (http://www.textteaser.com/)

test.js

$.ajax({ 
     url:"http://uncreative.korny.cc:8888/",
     type: "POST",
     data: JSON.stringify({
      id: encodeURIComponent($('.post_title').text()),
      title:$('.post_title').text(),
      text:$('.post_content').text()
      .replace(/[^"':;/!?.>,<\[\]{}\-=\+\(\)|!@#$%^&*~`\u2019\u201C\u201D\w]/g," ")
      .replace(/([.,!?])[\s]*([^\s])/g,"$1 $2")
      .replace(/\s+/g," ")
      .replace(/(\w{2,100})\s([st])\s/g,"$1'$2 ")
      .replace(/(^\s*)|(\s*$)/g,"")
     }),
     contentType: 'application/json',
     dataType: 'json',
                 crossDomain: true,
         }).done(function(brief) {
              $('body').append(
                '<style>' +
                '.short { z-index: 99999; position: fixed;top: 0;bottom: 0;left: 0;right: 0;background: rgba(0,0,0,0.3);}' +
                '.short div { overflow: auto; text-align: center; position: absolute; top: 0; bottom: 0; left: 0; right: 0; background: whitesmoke; margin: 10%; padding: 1em; border: 1px solid; border-radius: 7px; }' +
                '.short ul { text-align: left ; }' +
                '.short span { font-weight: 700; font-size: 1.2em; }' +
                '</style>' +
                '<div class="short"><div><span>In Brief</span><ul></ul></div></div>');
                
                $.each(brief.sentences, function(x,y) { $('<li>').text(y).appendTo('.short ul') })
                $('.short').on('click', function(e) { $(e.target).remove() });
    });