function clearMoon()
{
  document.getElementById("DataIn").value = "";
  document.getElementById("Output").innerHTML = 
        "Your moon sign will appear here.";
  }

function Check()
{
    document.getElementById("Output").innerHTML = "";
    
    var CheckValue = document.getElementById("DataIn").value;
    if (CheckValue == "")
    {
	document.getElementById("Output").innerHTML =
            "Your moon sign will appear here.";
    } else {
	var moonSign = getSign(parseFloat(CheckValue));
	if (moonSign == null) {
	    document.getElementById("Output").innerHTML = 
		"Calculator is for moon signs since 1900.";
	} else {
	    document.getElementById("Output").innerHTML = 
		"Your natal moon is in "+moonSign;
	}
    }
}