Untitled

<HTML>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
    function Grades(grade1, grade2, grade3)
    {
        this.enterThreeGrades = [grade1,grade2,grade3];
		this.averageTheFirstTwo = (grade1+grade2)/2;
		firstAvg = Grades.averageTheFirstTwo;
		this.firstAvg = (firstAvg + grade3)/2;
		secondAvg = this.firstAvg;
		this.secondAvg() {return this.firstAvg;}
    }
	function enterThreeGrades()
	{
		var gradeaverage = new Grades(100,99,98);
	}
	function printOut(secondAvg)
	{
		document.write("The final average is " + gradeaverage);
	}
</SCRIPT>
</HEAD>
<BODY BGCOLOR="pink">
<SCRIPT LANGUAGE="JavaScript">
	printOut();
</SCRIPT>
</BODY>
</HTML>