function fCheckitTextBox(){
if (document.mailer.imja.value == ""){ alert("You do not fill 'Name' field."); document.mailer.imja.focus(); return false;}
if (document.mailer.famil.value == ""){ alert("You do not fill 'Surname' field."); document.mailer.famil.focus(); return false;}
if (document.mailer.gorod.value == ""){ alert("You do not fill 'Counry, City' field."); document.mailer.gorod.focus(); return false;}
if (document.mailer.mulo.value == ""){ alert("You do not fill 'E-mail' field."); document.mailer.mulo.focus(); return false;}
else{ var email = new String(document.mailer.mulo.value);
if (email.indexOf("@") < 0){ alert("Incorrect E-mail: " + email); document.mailer.mulo.focus(); return false;}
else if (email.indexOf("@") == 0 || email.indexOf("@") > email.length - 5){ alert("Incorrect E-mail: " + email); document.mailer.mulo.focus(); return false;}
if (email.indexOf(".") < 0){ alert("Incorrect E-mail: " + email); document.mailer.mulo.focus(); return false;}
else if (email.indexOf(".") == 0 || email.indexOf(".") > email.length - 3){ alert("Incorrect E-mail: " + email); document.mailer.mulo.focus(); return false;}}
if (document.mailer.coment.value == ""){ alert("You do not fill 'Message' text."); document.mailer.coment.focus(); return false;}
if (document.mailer.kfa.value == ""){ alert("You do not fill Antispam Code."); document.mailer.kfa.focus(); return false;}
}