function mc_convert()
{
	//if(document.getElementById('mc_ammount').value*1 == 0) return false;
	var data = {
		"mc_ammount": document.getElementById('mc_ammount').value,
		"mc_from": document.getElementById('mc_from').value,
		"mc_to": document.getElementById('mc_to').value
	}
	document.getElementById('mc_img_load').style.display = "";
	document.getElementById('mc_result').innerHTML = "";
	$.ajax({
	type: "POST",
	url: "/lib/mc.ajax.php",
	dataType: "json",
	data: data,
	success: function(msg) {
			//document.getElementById('mc_ammount').value = "";
			document.getElementById('mc_img_load').style.display = "none";
			if(msg[0] == -1)
			{
				document.getElementById('mc_result').innerHTML = msg[1];
			}
			else
			{
				document.getElementById('mc_result').innerHTML = msg[0] + ' ' + msg[1] + ' = ' + msg[2] + ' ' + msg[3];
			}
		}
	});
}