[JavaScript] - Problema con document.createElement

[likioti687]

vi posto il codice:

function createALeaf() {        
    var leafDiv = document.createElement('div');    
    var image = document.createElement('img');
    image.src = 'images/leaf' + randomInteger(1, 5) + '.png';    
    leafDiv.style.top = "-100px";
    leafDiv.style.left = pixelValue(randomInteger(0, 1024));
    var spinAnimationName = (Math.random() < 0.5) ? 'clockwiseSpin' : 'counterclockwiseSpinAndFlip';
    leafDiv.style.webkitAnimationName = 'fade, drop';
    image.style.webkitAnimationName = spinAnimationName;
    var fadeAndDropDuration = durationValue(randomFloat(5, 11));
    var spinDuration = durationValue(randomFloat(4, 8));
    leafDiv.style.webkitAnimationDuration = fadeAndDropDuration + ', ' + fadeAndDropDuration;
    var leafDelay = durationValue(randomFloat(0, 5));
    leafDiv.style.webkitAnimationDelay = leafDelay + ', ' + leafDelay;
    image.style.webkitAnimationDuration = spinDuration;
    leafDiv.appendChild(image);
    return leafDiv;
}