var imgsa = new Array("Total logistics","Personal solutions","Professional staff","Advanced working methods","Renewing ideas","More than 40 years experience");
var alta = new Array();
var currentAda = 0;
var imgCta = 6;
function cyclea() {
  if (currentAda == imgCta) {
    currentAda = 0;
  }
document.getElementById('headertext').innerHTML = imgsa[currentAda];
  currentAda++;
}
 window.setInterval("cyclea()",1000);