Check if selected_stats is large enough.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@1089 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/skins/erp5_html_style/form_list_ui.pt

@@ -107,11 +107,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
              
            <select name="stat_columns">
               <span tal:repeat="stat stats">
-              <span tal:condition="python: stat == selected_stats[row_index - 1]" tal:on-error="string: row_index">
+		      <span tal:condition="python: len(selected_stats) >= row_index and stat == selected_stats[row_index - 1]" tal:on-error="string: row_index">
               <option tal:content="stat" tal:attributes="value stat" value="None" selected>
               </option>
               </span>
-              <span tal:condition="python: stat != selected_stats[row_index - 1]" tal:on-error="string: row_index">
+	      <span tal:condition="python: len(selected_stats) < row_index or stat != selected_stats[row_index - 1]" tal:on-error="string: row_index">
               <option tal:content="stat" tal:attributes="value stat" value="None">
               </option>
               </span>