--- documentViewer/documentViewer.py	2007/06/08 18:10:22	1.27
+++ documentViewer/documentViewer.py	2007/06/15 14:16:27	1.29
@@ -18,6 +18,7 @@ import sys
 import cgi
 import urllib
 import logging
+import math
 
 import urlparse 
 
@@ -31,7 +32,7 @@ def getInt(number, default=0):
     try:
         return int(number)
     except:
-        return default
+        return int(default)
 
 def getTextFromNode(nodename):
     """get the cdata content of a node"""
@@ -438,9 +439,18 @@ class documentViewer(Folder):
         """gets the bibliographical information from the preseantion entry in texttools
         """
         dom=self.getPresentationInfoXML(url)
-        docinfo['author']=getTextFromNode(dom.xpath("//author")[0])
-        docinfo['title']=getTextFromNode(dom.xpath("//title")[0])
-        docinfo['year']=getTextFromNode(dom.xpath("//date")[0])
+        try:
+            docinfo['author']=getTextFromNode(dom.xpath("//author")[0])
+        except:
+            pass
+        try:
+            docinfo['title']=getTextFromNode(dom.xpath("//title")[0])
+        except:
+            pass
+        try:
+            docinfo['year']=getTextFromNode(dom.xpath("//date")[0])
+        except:
+            pass
         return docinfo
     
     def getDocinfoFromImagePath(self,path,docinfo=None):
@@ -495,7 +505,8 @@ class documentViewer(Folder):
         pageinfo['cols'] = cols
         grpsize = cols * rows
         pageinfo['groupsize'] = grpsize
-        start = getInt(start, default=(int(current / grpsize) * grpsize +1))
+        start = getInt(start, default=(math.ceil(float(current)/float(grpsize))*grpsize-(grpsize-1)))
+        # int(current / grpsize) * grpsize +1))
         pageinfo['start'] = start
         pageinfo['end'] = start + grpsize
         if docinfo is not None: