function validate_form ( ){valid = true;if ( document.form1.Ime.value == "" ){alert ( "Molimo unesite Vase ime i prezime..." );valid = false;return valid;}if ( document.form1.Telefon.value == "" ){alert ( "Molimo unesite Broj telefona..." );valid = false;return valid;}if ( document.form1.Email.value == "" ){alert ( "Molimo unesite e-mail za kontakt..." );valid = false;return valid;}if ( document.form1.Sifra.value == "" ){alert ( "Niste uneli sifru apartmana." );valid = false;return valid;}return valid;}