fix css and don't call DateTime functions when date is None

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@44595 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_web_ung_theme/SkinTemplateItem/portal_skins/erp5_web_ung_theme/EmailThread_getCustomDate.xml

@@ -57,6 +57,8 @@
   XXX - check if it is possible with DateField\n
 """\n
 date = context.getStartDate()\n
+if not date:\n
+  return None\n
 if date.isCurrentDay():\n
   return date.AMPMMinutes()\n
 else:\n

bt5/erp5_web_ung_theme/SkinTemplateItem/portal_skins/erp5_web_ung_theme/ung_css/ung_mail.css.xml

@@ -168,6 +168,10 @@ a.email {\n
 \n
 div.header-left {\n
   margin-top: -9px !important;\n
+}\n
+\n
+div.listbox-tree {\n
+  display: none !important;\n
 }</string> </value>
         </item>
         <item>

bt5/erp5_web_ung_theme/bt/revision

-324
+325
\ No newline at end of file