function submitCodeBox () {
   var form_name = $('form-code');
   var value_code = $('form-code-value'); 
   var rgExp = /^[0-9]{2}-[0-9]{3}$/
   var resultArray = value_code.value.match(rgExp);
   if (resultArray == null) {
       alert('Wprowadź kod pocztowy w formacie: XX-XXX');
       return false;
       } else {
         form_name.submit();  
       }
}