--- ImageArchive/ImageArchive.py	2005/03/15 20:31:10	1.46
+++ ImageArchive/ImageArchive.py	2005/03/18 13:16:10	1.47
@@ -193,7 +193,7 @@ class ImageDigilib(Folder,Persistent,Imp
 	self.REQUEST.RESPONSE.setHeader("Content-Disposition","""attachement; filename="%s" """%filename)
 	self.REQUEST.RESPONSE.setHeader("Content-Type","application/octet-stream")
         #print path
-	imagefh=urllib.urlopen(path)
+	imagefh=urllib.urlopen(path,'rb')
         
 	self.REQUEST.RESPONSE.write(imagefh.read())
 	self.REQUEST.RESPONSE.close()
@@ -856,9 +856,10 @@ class ImageCollection(Folder, Persistent
 
     def show_selected_thumbs(self):
         #ids=[]
-        
-        return self.REQUEST.SESSION['filenames']
-
+        try:
+         return self.REQUEST.SESSION['filenames']
+	except:
+	 return None
     def show_thumbs(self):
         ids=[]
         for entry in self.__dict__:
@@ -997,6 +998,8 @@ class ImageCollection(Folder, Persistent
     def show_thumbs_selected_rows(self,numberOfColumns):
         """Ausgabe anzahl"""
         ids=self.show_selected_thumbs()
+        if not ids:
+		return None
         self.REQUEST.SESSION['ids']=ids
         number=int(len(ids)/numberOfColumns)+1
         self.REQUEST.SESSION['number']=range(number)