(window.firstForma.portal.block(<ID виджета ленты новостей>)).onLoaded(function(event){
      const W = 800, 
          H = 600;
    let news = document.querySelectorAll('.mnp-news-item');
    news.forEach(item => item.addEventListener('click', function() {
        let wnd = window.top.radopen('/spaex.aspx/portal/block/<ID виджета одной новости>/news-details/' + item.dataset.taskid + '?slave=true');
          wnd.setSize(W, H);
          wnd.moveTo((window.top.innerWidth - W)/2, (window.top.innerHeight - H)/2);
    }));
    
    const itemWidth = news[0].offsetWidth + 20;
  
      const delta = 10;
    
    let wrapper = document.querySelector('.mnp-news-wrapper'), 
        container = document.querySelector('.mnp-news-container');
    
    container.style.width = (news.length * itemWidth) + 'px';
    container.style.marginLeft = 0;
    
    let left = document.getElementById('mnp-news-arrow-left'), 
        right = document.getElementById('mnp-news-arrow-right');
    
    function setArrowsVisibility() {
          let arrowAcc = getArrowAccess();
          left.style.visibility = arrowAcc.arrowLeft ? '' : 'hidden';
          right.style.visibility = arrowAcc.arrowRight ? '' : 'hidden';
    }
  
      function getArrowAccess() {
          let first = news[0], 
            last = news[news.length - 1],
            arrowLeft = false,
            arrowRight = false;
        
        if (Math.abs(wrapper.offsetLeft - first.offsetLeft) <= delta) {
            arrowLeft = false;
            arrowRight = true;
        } else if (Math.abs(wrapper.offsetLeft + wrapper.offsetWidth - last.offsetLeft - itemWidth) <= delta) {
            arrowLeft = true;
            arrowRight = false;
        } else {
            arrowLeft = true;
            arrowRight = true;
        }
         return {arrowLeft: arrowLeft, arrowRight: arrowRight};
    }
    
    
    left.addEventListener('click', function() {
        let first = news[0];
        let scrollValue = Math.min(itemWidth, wrapper.offsetLeft - first.offsetLeft);
        container.style.marginLeft = (parseInt(container.style.marginLeft.replace('px', '')) + scrollValue) + 'px';
    });
    
    right.addEventListener('click', function() {    
        let last = news[news.length - 1];
        let scrollValue = Math.min(itemWidth, last.offsetLeft + itemWidth - wrapper.offsetLeft - wrapper.offsetWidth);
        container.style.marginLeft = (parseInt(container.style.marginLeft.replace('px', '')) - scrollValue) + 'px';
    });
    
    container.addEventListener('transitionend', setArrowsVisibility);
    
    setArrowsVisibility();
  
    let swipeFunc = function() {
      let element = document.querySelector('.mnp-news-container');
      window.swipe(element);
      element.addEventListener('swipe', function(e) {
          let arrowAcc = getArrowAccess();
        if (e.detail.dir == 'right' && arrowAcc.arrowLeft) {
            left.click();
        }
        if (e.detail.dir == 'left' && arrowAcc.arrowRight) {
            right.click();
        }
      });
    };
      setTimeout(swipeFunc, 5000);
});