Button not work in CHS environment

Dear all,

We are using Siebel-CTMS, we use 2 languages in CTMS ( http://localhost/eclinical_enu/start.swe and http://localhost/eclinical_chs/start.swe).  We have a button 'Update Report' in an applet, it works well in ENU environment when we click button but it doesn't work in CHS, who can help to tell me where I need to check in foreground and background.

what I know is below:

    1. The applet both in ENU and CHS, use the same method, same BC, has the same server script in Applet Server Script and BC Server Script.

    2.  Click button in ENU, number calculated by script become 8 (e.g.), Normall if we click button in CHS,it also gives 8, but the number became 0, it seems it make a initialization.