[FLASH] Problema al reproducir un SWF en una web

// initialize variables and properties
square._alpha = 0;
whichPic = 1;
// initiate change to new image when buttons are clicked
next.onPress = function() {
    if (whichPic<5 && !fadeIn && !fadeOut) {
        fadeOut = true;
        whichpic++;
        input = whichPic;
    }
};
back.onPress = function() {
    if (whichPic>1 && !fadeIn && !fadeOut) {
        fadeOut = true;
        whichpic--;
        input = whichPic;
    }
};
_root.onEnterFrame = function() {
    // when a new Photo is selected, fade out, load new image, and fade in
    if (square._alpha>10 && fadeOut) {
        square._alpha -= 10;
    }
    if (square._alpha<10) {
        loadMovie("../archivos/mitos"+whichPic+".jpg", "square");
        fadeOut = false;
        fadeIn = true;
    }
    if (square._alpha<100 && fadeIn && !fadeOut) {
        square._alpha += 10;
    } else {
        fadeIn = false;
    }
    // limit input field
    if (input>5) {
        input = 5;
    }
    // initiate change to new image when Enter key is pressed
    if (Key.isDown(Key.ENTER)) {
        fadeOut = true;
        whichpic = input;
    }
};
// if a number is entered in the input field but Enter is not pressed, change
// back to current Photo number when clicking anywhere else
inputField.onKillFocus = function() {
    input = whichPic;
};