This is the descriptive text that comes before the code example, talking about whatever the code is an example of:

This is the caption
//try to get to sleep unless there's too much noise in the room
function getToSleep()
{
	while(noise <= 10 && sleep !== "zzz")
	{
		sheep ++;
	}
	if(noise > 10)
	{
		return false;
	}
	return true;
}