function calcola(){
  var locali = 0.000383;
  var nazionali = 0.000645;
  var cellulari = 0.0033167;
  var myForm = document.calcolo;
  
  //Trasformo tutto in secondi in secondi e calcolo l'importo totale singolo per direttrici
  var tot_locali = (myForm.hloc.value*3600 + myForm.mloc.value*60 + myForm.sloc.value*1) * locali;
  var tot_nazionali = (myForm.hnaz.value*3600 + myForm.mnaz.value*60 + myForm.snaz.value*1) * nazionali;
  var tot_cellulari = (myForm.hcell.value*3600 + myForm.mcell.value*60 + myForm.scell.value*1) * cellulari;
  var tot_omninet = tot_locali + tot_nazionali + tot_cellulari;
  
  Tariffe = new Array(tot_locali, tot_nazionali, tot_cellulari, tot_omninet);
  
  for( i=0; i<Tariffe.length; i++ ){
    var stringa = Tariffe[i]+"";
	if( stringa.indexOf(".") != (-1) && stringa!="0"){
	  var arr_num = stringa.split(".");
	  //var decimaliold = arr_num[1].substring(0,4);
	  //var arrot = Math.round(decimaliold.substring(2));
	  //alert(decimaliold + ' ' + arrot);
	  //if(arrot.length==1){
	    //arrot += 0;
	  //}
	  //var decimalnew = arr_num[1].substring(0,2) + arrot;
	  Tariffe[i] = arr_num[0] + "." + arr_num[1].substring(0,4);
	  //Tariffe[i] = arr_num[0] + "." + decimalnew;
	}
  }
  document.getElementById('totlocomninet').innerHTML = Tariffe[0];
  document.getElementById('totnazomninet').innerHTML = Tariffe[1];
  document.getElementById('totcellomninet').innerHTML = Tariffe[2];
  document.getElementById('totomninet').innerHTML = Tariffe[3];
  //alert(tot_locali);
}

function resets() {
  var myForm = document.calcolo;
  myForm.hloc.value = '';
  myForm.mloc.value = '';
  myForm.sloc.value = '';
  myForm.hnaz.value = '';
  myForm.mnaz.value = '';
  myForm.snaz.value = '';
  myForm.hcell.value = '';
  myForm.mcell.value = '';
  myForm.scell.value = '';
  
  document.getElementById('totlocomninet').innerHTML = '';
  document.getElementById('totnazomninet').innerHTML = '';
  document.getElementById('totcellomninet').innerHTML = '';
  document.getElementById('totomninet').innerHTML = '';
}

function openVoip() {
  window.open('http://www.omninetitalia.com/Voip','Voip','fullscreen,resizable=no,menubar=no,toolbar=no,location=no');
}