ICS3U1 Unit 1 Activity 4: Question 2

// This line makes the button, btnCalculate wait for a mouse click
// When the button is clicked, the displayDate function is called
btnCalculate.addEventListener(MouseEvent.CLICK, displayDate);

// This line makes the textinput, txtinRadius wait for a mouse click
// When the textinput is clicked, the clearLabels function is called
txtinYear.addEventListener(MouseEvent.CLICK, clearLabels);

// This is the displayDate function
// e:MouseEvent is the click event experienced by the button
// void indicates that the function does not return a value
function displayDate(e:MouseEvent):void
{
    // declare the variables
    var Year:Number;
    var Avalue:Number;
    var Bvalue:Number;
    var Cvalue:Number;
    var Dvalue:Number;
    var Fvalue:Number;
    var Gvalue:Number;
    var Hvalue:Number;
    var Ivalue:Number;
    var Jvalue:Number;
    var Kvalue:Number;
    var Mvalue:Number;
    var Month:Number;
    var Day:Number;

    // calculate the Month and Date
    Year = Number(txtinYear.text)
    Avalue = Year % 19
    Bvalue = Year / 100
    Cvalue = Year % 100
    Dvalue = Bvalue / 4
    Kvalue = Bvalue % 4
    Fvalue = ((8* Bvalue) + 13) / 25
    Gvalue = (( 19 * Avalue) + Bvalue - Dvalue - Fvalue + 15) % 30
    Hvalue = (Avalue + ( 11 * Gvalue)) / 319
    Ivalue = Cvalue / 4
    Jvalue = Cvalue % 4
    Mvalue = ((2 * Kvalue) + (2 * Ivalue) - Gvalue - Hvalue - Jvalue + 32) % 7
    Month = (Gvalue - Hvalue + Mvalue + 90) / 25
    Day = (Gvalue - Hvalue + Mvalue + Month + 19) % 32

    // put the values into the labels
     lblMonth.text = Month.toFixed(0);
     lblDay.text = Day.toFixed(0);
}

// This is the clearLabels function
// e:MouseEvent is the click event experienced by the textinput
// void indicates that the function does not return a value
function clearLabels(e:MouseEvent):void
{
    txtinYear.text = "";
    lblMonth.text = "";
    lblDay.text = "";
}