Untitled

<HTML>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
    function Grades(grade1, grade2, grade3)
    {
        this.enterThreeGrades = [grade1,grade2,grade3];
        this.averageTheFirstTwo = (grade1+grade2)/2;
        var firstAvg = this.averageTheFirstTwo;
        this.firstAvg = (firstAvg + grade3)/2;
        var secondAvg = this.firstAvg;
        this.secondAvg()
		{
			return this.firstAvg;
		}
    }
    function printOut(gradeAvg1)
    {
        document.write("The final average is " + gradeAvg1);
    }
</SCRIPT>
</HEAD>
<BODY BGCOLOR="pink">
<SCRIPT LANGUAGE="JavaScript">
	var gradeAverage = new Grades(100,99,98);
    printOut(gradeAverage.firstAvg);
</SCRIPT>
</BODY>
</HTML>