function preloadImg () {
	var loadImg = new Array("images/cat_bear_still_001.jpg", "images/cat_bear_still_002.jpg", "images/cat_bear_still_003.jpg", "images/cat_bear_still_004.jpg", "images/cat_bear_still_005.jpg", "images/cat_bear_still_006.jpg", "images/cat_bear_still_007.jpg", "images/cat_bear_still_008.jpg", "images/cat_bear_still_009.jpg", "images/cat_bear_still_0010.jpg", "images/cat_bear_still_011.jpg");
	// lorsqu'une image est rajoutée, insérer l'image (path) dans l'array loadImg
	// le for loop se charge de faire le preload.
	var preloadImg = new Array();
	for(i = 0; i < loadImg.length; i++) {
		preloadImg[i] = new Image();
		preloadImg[i].src = loadImg[i];
	}
}