text: 
  let c = () => Array.from(document.getElementsByTagName("INPUT")).filter(cur => cur.type === 'checkbox' && cur.checked).length > 0;
  
  document.getElementById("checkbox-tags").addEventListener("click", (e) =>{
  	if(c()){
  		document.getElementById("delete-tags").disabled = false;
  		document.getElementById("add-tag").disabled = true;
  
  	}else{
  		document.getElementById("delete-tags").disabled = true;
  		document.getElementById("add-tag").disabled = false;
  	}	
  })
  