Event.observe(window, "load", on_load);

function on_load()
{
	if ($("heard").value == "other")
	{
		$("othercontrols").show();
	}
	else
	{
		$("othercontrols").hide();
	}
	
	$("heard").observe("change", function() {
		if ($("heard").value == "other")
		{
			$("othercontrols").show();
		}
		else
		{
			$("othercontrols").hide();
		}
	});
}