// Funzioni Javascript di varia utilità

// Visualizza o nasconde un div
function ShowAndHide(element_1,element_2){
  if(document.getElementById){
    el1=document.getElementById(element_1);
    el2=document.getElementById(element_2);

    el2.style.display="none";
    el1.style.display="block";
  }
}

// Imposta il target
function setTarget( form ){
  form.target = '_blank';
  return true;
}

// Select/Unselect 
function selectAll( select, form ){
  for (var i=0; i< form.elements.length;i++){
    form.elements[i].checked = select;
  }
}