Why would you do this? Javascript is a standard language, VBScript is proprietary.
Look at the ECMA standards on the topic:
http://en.wikipedia.org/wiki/ECMAScript[
^].
This is what Javascript is — an implementation of the ECMAScript:
http://en.wikipedia.org/wiki/JavaScript[
^].
This is what VBScript is:
http://en.wikipedia.org/wiki/VBScript[
^].
All you can do with VBScript you can do with Javascript, not the other way around.
If you need to preserve you work and make it compatible, forget VBScript and use Javascript in all cases.
Yes, I know I don't answer your question. You don't need an answer, you need help.
[EDIT]
You will take less time in just learning VBScript than searching for the tool.
By reasons I explained, there are translators from VBScript to Javascript, but I never heard of the opposite.
See:
http://stackoverflow.com/questions/569380/how-can-i-convert-javascript-to-vbscript[
^]:
"You can convert VB to JS but JS to VB… that's just crazy talk."Do the Google search if you want…
—SA