text: var elements, text, feedStream, filter = 'Navrhovaný příspěvek', filter2='Sponzorováno';
  
  clearFeed();
  setInterval(clearFeed, 300);
  
  function clearFeed()
  {
  	try{ //try - because I don't want wait for DOM ready
  		feedStream = document.body.querySelector("[id^='feed_stream']");
  		
  		elements = feedStream.querySelectorAll('span>span[class]');
  	    for (var i = elements.length-1; i >= 0; i--){
  	        if(filter.localeCompare(elements[i].innerText)===0){ //fastest way to compare strings?
  	            // uncomment for debug
  	            // elements[i].closest("[data-testid^='fbfeed']").style.outline = "5px solid black";
  	            // elements[i].closest("[data-testid^='fbfeed']").style.opacity = "0.1";
  	            elements[i].closest("[data-testid^='fbfeed']").style.display = "none";
  	        }
  	    }  
  	    elements = feedStream.querySelectorAll('h6+div>span>a[rel=nofollow]');
  	    for (var i = elements.length-1; i >= 0; i--){
  	        if(filter2.localeCompare(elements[i].innerText)===0){
  	            elements[i].closest("[data-testid^='fbfeed']").style.display = "none";
  	        }
  	    }  
  	}catch(ignore){}
  }