function Error()
	{
		//alert('error')
	}

Error.prototype.generateMessage = function(errorType,questionNumber)
	{
		if (errorType == "unansweredQuestion")
			{
  				alert("Please answer all the questions"); // however, up to question 9, no need to do any manipulation
				return;
			}
		else if (errorType == "nonNumericData")
			{
  				alert("Please enter a valid answer for question "+questionNumber);
  				return;
 			}
	}