Show an warning box ofor unsaved changes only if save button do exists in page.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@34375 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/erp5.js.xml

@@ -250,7 +250,8 @@ var resizeIFrameOnLoad = function() {\n
 var changed = false;\n
 function installUnsavedChangesWarning(warning_message) {\n
   window.onbeforeunload = function() {\n
-    if (changed) \n
+    if ((changed)&&(getFirstElementByTagAndClassName("button", "save")))\n
+      // show an warning box only if save button do exists\n
       return warning_message;\n
   };\n
 };\n

product/ERP5/bootstrap/erp5_xhtml_style/bt/revision

-918
\ No newline at end of file
+920
\ No newline at end of file