NumPics = Pictures.length;
	NumGalleries = Galleries.length;

	IndexSize     = 20;
	NumIndexPages = Math.ceil(NumPics/IndexSize);
	ThisIndexPage = Math.ceil((thisPic+1)/IndexSize);
	FirstIndexPic = ((ThisIndexPage-1)*IndexSize);

	SetDescription = " ";

	for (var I = 0; I < NumGalleries; I++)
	{
		if (Galleries[I].ID != undefined) {
			if (Galleries[I].ID == thisGallery) {
				SetDescription = Galleries[I].Description;
			}
		}
	}