function zkontroluj(formular)
{
	
	if (formular.name.value=="")
    {
        alert("Please enter your name!");
        formular.name.focus();
        return false;
    }
	if (formular.phone.value=="" && formular.email.value=="")
    {
        alert("Please enter email or phone!");
        formular.phone.focus();
        return false;
    }
	
	if (formular.email.value!="")
    {
        re = new RegExp("^[^.]+(\.[^.]+)*@([^.]+[.])+[a-z]{2,4}$");
        if (!re.test(formular.email.value))
        {
            alert("Wrong e-mail format.");
            formular.email.focus();
            return false;
        }
    }
	if (formular.treatment.value=="Empty" && formular.comment.value=="")
    {
        alert("Please specify your request.");
        formular.treatment.focus();
        return false;
    }
    else 
        return true;
}