function waild(form) {
  var blad = false 
  var bledy = " ";

  if (!waliduj_email (form.email.value))
  {
    blad = true
  }
 
  if (blad)
  {
    alert ("Podaj porawny adres email.")
    return false
  }
  sendMail()
  return true
}

function waliduj_email (email) 
{
         zabronione = "<>?"/" /:,;\|!#$%^&*()"
         if (email == "")
            return false
         for (i=0; i< zabronione.length; i++) 
         {
            zly = zabronione.charAt(i)
            if (email.indexOf(zly,0) != -1) 
              return false
         }
         malpa = email.indexOf("@", 0)
         if (malpa == -1 || malpa == 0)
            return false
         if (email.indexOf("@", malpa+1) != -1)
            return false
         kropka = email.indexOf(".",malpa)
         if((kropka==-1) || (kropka==malpa+1))
            return false
         if(kropka+3 > email.length)
            return false
         return true
}

function sendMail()
{
    document.formularz.method="post"
}