function ugc_share_form_login(){

	form = document.forms['ran24'];
	if(form.mittente.value==""){alert("Specificare il MITTENTE");return;}
	if(form.destinatario.value==""){alert("Specificare il DESTINATARIO");return;}
	if(form.email.value==""){alert("Specificare un indirizzo EMAIL");return;}
	if(!indirizzoEmailValido(form.email.value)){alert("Specificare una EMAIL valida"); return;}
	if(form.comment.value==""){alert("Inserisci un COMMENTO");return;}
	form.submit();
}

function indirizzoEmailValido(indirizzo) {
  if (window.RegExp) {
    var nonvalido = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
    var valido = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$";
    var regnv = new RegExp(nonvalido);
    var regv = new RegExp(valido);
    if (!regnv.test(indirizzo) && regv.test(indirizzo))
      return true;
    return false;
	}
  else {
    if(indirizzo.indexOf("@") >= 0)
      return true;
    return false;
  	}
}

function check_charset(stringa){
	var myregexp = /^[a-z0-9_]+$/;
    if (myregexp.test(stringa) == false){return false;}
	else{return true;}
}

function check_string_length(stringa,numchar){
	if(stringa.length < numchar){return false;}
	else{return true;}
}


//START SIZE FONTS
function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = '; expires='+date.toGMTString();
  }
  else expires = '';
  document.cookie = name+'='+value+expires+'; path=/';
}

function readCookie(name) {
  var nameEQ = name + '=';
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

function setFontSize(size) {
	var body = document.getElementsByTagName('body')[0];
	var percentuale = "100%"; // default
	if (size == 1) percentuale = "100%";
	if (size == 2) percentuale = "120%";
	if (size == 3) percentuale = "130%";
	body.style.fontSize = percentuale;
	createCookie('rainews24_sizefonts',size,365);
}

window.onload = function() {
	size = readCookie('rainews24_sizefonts');
	setFontSize(size);
}
//END SIZE FONTS


//MENU CONDIVIDI
function aprichiudi(item) {
   elem=document.getElementById(item);
   visibile=(elem.style.display!="none")
   prefisso=document.getElementById("menu" + item);
   if (visibile) {
     elem.style.display="none";
     prefisso.innerHTML="<img src='images/trasp.gif' width='16' height='16' hspace='0' vspace='0' border='0'>";
   } else {
      elem.style.display="block";
      prefisso.innerHTML="<img src='images/trasp.gif' width='16' height='16' hspace='0' vspace='0' border='0'>";
   }
}