private void setDisplayGrade() 
	{
		String s = "";
		
		if (this.getGrade().equalsIgnoreCase("PK"))
			s = "PK";
		else if (this.getGrade().equalsIgnoreCase("KK"))
			s = "K";
		else if (this.getGrade().equalsIgnoreCase("01"))
			s = "1st";
		else if (this.getGrade().equalsIgnoreCase("02"))
			s = "2nd";
		else if (this.getGrade().equalsIgnoreCase("03"))
			s = "3rd";
		else if (this.getGrade().equalsIgnoreCase("04"))
			s = "4th";
		else if (this.getGrade().equalsIgnoreCase("05"))
			s = "5th";		

		this.displayGrade = s;
	}