function a_trim(str)
{
	s = str.replace(/^(\s)*/, '');
	s = s.replace(/(\s)*$/, '');
	return s;
}

function szallitas(ossz, m)
{
	posta = 2000;
	futar = 1500;

	if(document.getElementById('futar').checked)
	{
		if (document.getElementById('posta_').value == 1)
		{
			document.getElementById('posta_').value = 0;
			document.getElementById('price').value = parseInt(document.getElementById('price').value)-posta;
		}

		document.getElementById('price').value = parseInt(document.getElementById('price').value)+futar;
		document.getElementById('futar_').value = '1';
	}
	else if(document.getElementById('posta').checked)
	{
		if (document.getElementById('futar_').value == 1)
		{
			document.getElementById('futar_').value = 0;
			document.getElementById('price').value = parseInt(document.getElementById('price').value)-futar;
		}

		document.getElementById('price').value = parseInt(document.getElementById('price').value)+posta;
		document.getElementById('posta_').value = 1;
	}

	document.getElementById('tdprice').innerHTML = document.getElementById('price').value+" Ft";
}