...non va

In pratica mi carica la prima foto, senza descrizione e non va + avanti.

Adesso riscrivo la funzione con la modifica che ho apportato:

codice:
<script language="JavaScript">


function CacheImage(ImageSource) {
   var ImageObject = new Image();
   ImageObject.src = ImageSource;
   return ImageObject;
}

function ShowSlide(Direction) {
   if (SlideReady) {
      NextSlide = CurrentSlide + Direction;
      document.SlideShow.Previous.disabled = (NextSlide == 0);
      document.SlideShow.Next.disabled = (NextSlide == (Slides.length-1));    
 if ((NextSlide >= 0) && (NextSlide < Slides.length)) {		
            document.images['Screen'].src = Slides[NextSlide].src;
						document.getElementById('descrizione').innerHTML=DescrSlides[NextSlide];
            CurrentSlide = NextSlide++;
            Message = 'Immagine ' + (CurrentSlide+1) + ' of ' + Slides.length;
            self.defaultStatus = Message;
            if (Direction == 1) CacheNextSlide();
      }
      return true;
   }
}

function Download() {
   if (Slides[NextSlide].complete) {
      SlideReady = true;
      self.defaultStatus = Message;
   }
   else setTimeout("Download()", 100);
   return true;
}

function CacheNextSlide() {
   if ((NextSlide < Slides.length) && (typeof Slides[NextSlide] == 'string'))
{
      SlideReady = false;
      self.defaultStatus = 'Downloading next picture...';
      Slides[NextSlide] = CacheImage(Slides[NextSlide]);
      Download();
   }
   return true;
}

function StartSlideShow() {
   CurrentSlide = -1;
   Slides[0] = CacheImage(Slides[0]);
   SlideReady = true;
   ShowSlide(1);
}
</script>

In rosso la stringa che ho inserito per recuperare l'elemento descrizione.

Nella pagina inoltre ho:

codice:
<script language="JavaScript">
var Slides      = new Array(<%=str_img_slide%>);
</script>

<script language="JavaScript">
var DescrSlides = new Array(<%=str_descr_slide%>);
</script>


.........

<table width="430" height="260" align="center" class="barra">
				  <tr>
     			   <td colspan="3" valign="top">
                <img name="Screen" width="430" height="260">
             </td>
          </tr>
          <tr>
             <td>
                <input type="button" name="Previous" value=" << " onClick="ShowSlide(-1)">
             </td>
						 <td>
                <div id="descrizione" align="center"><div>
             </td>
             <td align="right">
                <input type="button" name="Next" value=" >> " onClick="ShowSlide(1)">
             </td>
          </tr>	
				</table>


Cosa mi consigliate????


Ciao