function FiltrCislo()
	{
	if (event.keyCode < 48 || event.keyCode > 57) event.returnValue = false;
	}

function SpocitejCenu()
	{
	var celkem = 0;

	if (Number(document.PridatDoKosiku.PocetKs.value) < Number(document.PridatDoKosiku.Minimum.value))
		{
		document.PridatDoKosiku.PocetKs.value = document.PridatDoKosiku.Minimum.value;
		}

	celkem = Math.round(document.PridatDoKosiku.PocetKs.value * document.PridatDoKosiku.Cena.value * 100) / 100;
	document.PridatDoKosiku.Celkem.value = celkem;
	}