// sort list:
var 
    list = document.getElementsByClassName("lang");
    for(var i = 0; i<list.length-1; i++){
        for(var j = i+1; j<list.length;j++){
            if(list[i].innerText>list[j].innerText)
            {
                 var temp =list[i].innerText;
                 list[i].innerText=list[j].innerText;
                 list[j].innerText=temp;
            }
        }
    }