function getScreenSize(){
        var q = document.getElementById("conteiner");
        var p = document.getElementById("porto").getElementsByTagName("DIV");
        if(screen.width > 1024) {
            q.style.width = 1260 + 'px';
            q.style.margin = '0px auto';
        } else {
            q.style.width = 1006 + 'px';
            for(var i = 0; i < p.length; i++){
                p[i].style.width = 299 + 'px';
            }
        }
  }