function checkPrefForm() {
    if(document.prefForm.prefEmail.value == '') {
        alert("EMAIL!");
        document.prefForm.prefEmail.focus();
        return false;
    }
}

function checkSignupForm(form) {
    if(form.signupEmail.value == "") {
        alert(forgotEmail);
        form.signupEmail.focus();
        return false;
    }
    
    if(form.signupUsername.value == "") {
        alert(forgotUsername);
        form.signupUsername.focus();
        return false;
    }
    
    if(form.signupPwd1.value == "") {
        alert(forgotPwd);
        form.signupPwd1.focus();
        return false;
    }
    else {
        if(form.signupPwd1.value != form.signupPwd2.value) {
            alert(pwdDoNotMatch);
            form.signupPwd1.focus();
            return false;
        }
    }
    
    if(form.signupName.value == "") {
        alert(forgotLastname);
        form.signupName.focus();
        return false;
    }
}