function validareWishlist() {

  if (document.getElementById('last_name').value == '') {
   alert('Va rugam sa completati numele de familie');
   document.getElementById('last_name').focus();
   return false;
  }

  if (document.getElementById('first_name').value == '') {
   alert('Va rugam sa completati prenumele');
   document.getElementById('first_name').focus();
   return false;
  }

  if (document.getElementById('email').value == '') {
    alert('Va rugam sa completati adresa de email');
    document.getElementById('email').focus();
    return false;
  }
  if (echeck(document.getElementById('email').value)==false){
    document.getElementById('email').value="";
    document.getElementById('email').focus();
    return false;
  }

   if (document.getElementById('phone_no').value != '')
      if(IsNumeric(document.getElementById('phone_no').value) == false){
          alert('Campul "Telefon" poate contine numai spatii, cifre si semnul "-"');
          document.getElementById('phone_no').focus();
          return false;
     }

    return true;
}
function addProductQuantity(field){
 if(isNaN(field.value))
  {
    field.value = '2';
  }
  else
  {
    result = Number(field.value) + 1;
    if(result > 999) field.value = 999;
    else field.value = result;
  }
}

function decreaseProductQuantity(field){
  if(isNaN(field.value))
  {
    field.value = '0';
  }
  else
  {
    result = (Number(field.value)) - 1;
    if(result > 0) field.value = result;
    else field.value = 0;
  }
}