1.
  Q: What does iSAP mean?
  A: iSAP means "Internet applications of Structures Analysis Program".

  2.
  Q:Internet Explorer script error similar below:
       An error occured the script on this page
       Line: xx
       Char:xx
       Error: object doesn't support this property or method
       Code: xx
       URL: xx
  A: The error occurs when iSAP's pop-up dialog boxes blocked.
       Turn off pop-up blocker here: Internet Explorer Menu/Tools/Pop-up Blocker

       If any third party plug-in of IE blocks pop-up dialog boxes too, set to allow.
       Moreover, 'IE Menu/View/Encoding/Autoselect' should be selected.

  3.
  Q: It's lingering when a big model rotates.
  A: Turn off some items before rotating, such as joint-id, frame-id or frame-section etc and then
      turn them on if necessary afterwards.