need help to find good path to images

[a_modified_dog]

try pushing your xml nodes into an associative array -

arr = new Array();
xmlPhotos.onLoad = function() {

for (var i:Number = 0; i<xmlPhotos.firstChild.childNodes.length; i++) {
var initThumb:Object = new Object();
initThumb.photo = (xmlPhotos.firstChild.childNodes[i].attributes.photo);
initThumb.titre = (xmlPhotos.firstChild.childNodes[i].childNodes[0].firstChild);
initThumb.count = (xmlPhotos.firstChild.childNodes[i].childNodes[1].firstChild);
arr.push(initThumb);
}

use List Variables to show how the array is compiled
use your counter to loop through the array -

var premierPic:Number = 0;

initThumb.onRelease = function() {
trace(arr[premierPic].photo);
mcLargePhoto.loadMovie("images/travel/"+arr[premierPic].photo);
txtCount.text = this.count;
txtDesc.text = this.titre;
mcScroller._alpha = 0;
};

untested, but the logic is sound

EDIT - object moved to inside of loop