var dsAlbumBook = new Spry.Data.XMLDataSet("slideshow.xml", "/AlbumBook");
var dsAlbums = new Spry.Data.XMLDataSet("slideshow.xml", "/AlbumBook/Album");
var dsSlides = new Spry.Data.XMLDataSet("slideshow.xml", "/AlbumBook/Album[@path = '{dsAlbums::@path}']/Slide");

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}}