function podajrate() {
	//alert("Hello World!");
	//document.myform.ratam.value = wartosc;
	cwartosc = document.myform.wartosc.value;
	iloscrat = document.myform.raty.value;
	
	cwartosc = cwartosc.replace(",",".");

	if (!isNaN(cwartosc) && cwartosc != "") {
		if  (iloscrat >= 36) {
			procent = 1.62;
		}
                else if  (iloscrat >= 30) {
			procent = 1.59;
		}
                else if  (iloscrat >= 24) {
			procent = 1.55;
		}
                else if  (iloscrat >= 18) {
			procent = 1.51;
		}
                else if  (iloscrat >= 12) {
			procent = 1.47;
		}
		else if (iloscrat >= 10) {
			procent = 1.46;
		}

		proc_cal = (iloscrat * procent) / 100;
		suma = parseInt(cwartosc) + (proc_cal * cwartosc);
		wynik = Math.round((suma / iloscrat)*100) / 100;

		document.myform.ratam.value = wynik;
	}
	else {
		document.myform.ratam.value = "";
	}

}


/*function raty(costam) {

alert("test");
//document.myform.ratam = costam;
//return false;

}


$wartosc = "";
$raty = "";
$rata = "";
if (isset($_POST['raty']) and $_POST['wartosc'] != '') {
	$raty = $_POST['raty'];
	$wartosc = $_POST['wartosc'];
	$procenty = array(10 => 1.21, 20 => 1.22, 30 => 1.27);
	$procenty = array_reverse($procenty);
	
	foreach ($procenty as $key => $value) {
		if ( $raty >= $key) {
			$procent = $value;
			break;
		}
	}
	
	$proc_cal = ($raty * $procent) / 100;
	$suma = $wartosc + ($proc_cal * $wartosc);
	$rata = round($suma / $raty, 2);
*/