// JavaScript Document
function zavrito(the) {

        d = document.getElementsByTagName('li');
                
        for(i=0;i<d.length;i++){
        if(d[i].className == 'otevreno')
        {
        d[i].className = 'zavreno';        
            }
          }
        the.className = 'otevreno';
        
        }