AS 2: 6-->8

[dcrystalj]

hi
does anyone know what is difference beetween flash 6 and 8?

i need to put these actionscript from 6 to 8

// ==============================================================
// FUNCTIONS
// ==============================================================
// FUNCTION: Calulate difference (elapsed time value).
fncCalcElapsed = function (nbrTime0, nbrTime1) {
    return nbrTime1-nbrTime0;
};
// ------------------------------------
// FUNCTION: Pad numbers with zeros so always two digits.
fncNbrPad = function (nbrValue) {
    // Concatenate zeros (prepend).
    var stgValue = "00"+nbrValue;
    // Return last two digits.
    return stgValue.substr(stgValue.length-2);
};
// ------------------------------------
// FUNCTION: Display formatting function.
fncDisplayFormat = function (nbrHr, nbrMin, nbrSec, nbrHnd) {
    // Assign to display textfield text property text returns from number padding function for each value.
    tfdDisplay.text = fncNbrPad(nbrHr)+":"+fncNbrPad(nbrMin)+":"+fncNbrPad(nbrSec)+":"+fncNbrPad(nbrHnd);
};
// ------------------------------------
// FUNCTION: Update the display values.
fncDisplayUpdate = function () {
    // Calcuate elapsed value from current timing plus previous value.
    nbrTimeElapsed = fncCalcElapsed(nbrTrackStart, getTimer())+nbrTrackPrev;
    // Call fncParse function to parse the elapsed time into units and display accordingly.
    fncParse(nbrTimeElapsed);
};
// ------------------------------------
// FUNCTION: Function to track time whether in stopped state or running state
fncTrackStatus = function () {
    // If current status is "running" (started)...
    if (blnStatus) {
        // Clear interval (stops updating).
        clearInterval(itvTime);
        // Store the new time elapsed value (which includes previous values).
        nbrTrackPrev = nbrTimeElapsed;
        // Else current status is "not running" (stopped)...
    } else {
        // Store current timer value.
        nbrTrackStart = getTimer();
        // Launch interval to call fncDisplayUpdate.
        itvTime = setInterval(fncDisplayUpdate, 10);
    }
};
// ------------------------------------
// FUNCTION: extract unit values (hours, minutes, seconds, and hundredths of seconds)
// from number of milliseconds elapsed.
fncParse = function (nbrMilliseconds) {
    // Calculate hundredths of a second.
    var nbrHnd = Math.floor(nbrMilliseconds/10)%100;
    // Calculate seconds.
    var nbrSec = Math.floor(nbrMilliseconds/1000)%60;
    // Calculate minutes.
    var nbrMin = Math.floor(nbrMilliseconds/60000)%60;
    // Calculate hours.
    var nbrHr = Math.floor(nbrMilliseconds/3600000)%24;
    // Call display formatting function.
    fncDisplayFormat(nbrHr, nbrMin, nbrSec, nbrHnd);
};
// ==============================================================
// INITIALIZE
// ==============================================================
// Establish boolean variable and initialize, to contain 
// value representing status: 0 = stopped; 1 = running
blnStatus = 0;
// Establish array of strings to use for button label (to indicate next action).
mvcBtnStartStop.rraLabel = ["START", "STOP"];
// Initialize textfield label for button.
mvcBtnStartStop.tfdBtnLabel.text = mvcBtnStartStop.rraLabel[blnStatus];
// Define button event.
mvcBtnStartStop.onPress = function() {
    this._parent.fncTrackStatus();
    this._parent.blnStatus = Number(!this._parent.blnStatus);
    this.tfdBtnLabel.text = this.rraLabel[this._parent.blnStatus];
};
// Conditional that starts tracking only if blnStatus is initialized to 1, above.
if (blnStatus) {
        // Store current timer value.
        nbrTrackStart = getTimer();
        // Launch interval to call fncDisplayUpdate.
        itvTime = setInterval(fncDisplayUpdate, 10);
}
// ==============================================================