function ustaw_styl(elemName,className){
    document.getElementById(elemName).className = className;
}
function select_inputstyle(elemName,className) //zaznacza inputa
{
    document.getElementById(elemName).className = className;
}

function contactform(frm)
{
 if(frm.cfcd_name)
 {
     if(frm.cfcd_name.value == '')
     {
         alert('Proszę podaj swoje imie i nazwisko...');
         select_inputstyle('cfcd_name','wpis-error');
         return false;
     }
 }
 if(frm.cfcd_phone)
 {
     if(frm.cfcd_phone.value == '')
     {
         alert('Proszę podaj swój numer telefonu...');
         select_inputstyle('cfcd_phone','wpis-error');
         return false;
     }
 }
 if(frm.cfcd_email)
 {
     if(frm.cfcd_email.value == '')
     {
         alert('Proszę podaj swój adres email...');
         select_inputstyle('cfcd_email','wpis-error');
         return false;
     }
 } 
 if(frm.cfcd_questions)
 {
     if(frm.cfcd_questions.value == '')
     {
         alert('Proszę wprowadź treść wiadomości...');
         select_inputstyle('cfcd_questions','wpis-over');
         return false;
     }
 }
 frm.submit();
}