JavaScript error - - please help!

**Grant Wagner** · Jul 23 '05, 11:21 AM

Re: JavaScript error - - please help!

questionr wrote:
[color=blue]
> There is a spell checker function which is written in VB Script. The
> function works well when tested seperately. But when the function is
> called from Java Script, the function shows an Error saying " A run
> time error has occured. Do you wish to debug? Line :0 , Object
> Expected". I just know that it is a Java Script error.
> Any suggestions on how to resolve this problem ? What could be the
> possible reasons for this error message?
>
> Here is the spell checker function: The way this function is called
> from JavaScript is like this :
>
> <span style="float:ri ght;text-align:right;wid th:50%"><a
> href="javascrip t:SpellCheck(fr mMain.taComment .innerText)">Sp elling
> Checker</a></span>
>
> <%
> function SpellCheck(strC omments)
> dim msg
> dim objWord, objDocument, NumberofWords, NumberofErrors
> Set objWord = CreateObject("W ord.Application ")
> Set objDocument = objWord.Documen ts.Add
> objDocument.Con tent = strComments
>
> NumberOfWords = objDocument.Wor ds.count
> NumberOfErrors = objDocument.Spe llingErrors.Cou nt
>
> If NumberOfErrors = 0 Then
> Response.Write "No Spelling Errors" & "<br>"
> 'NO spelling errors...
> Else
> 'loop through each word in the document
> i=1
> while i < NumberOfWords
> if objDocument.Wor ds(i).SpellingE rrors.Count > 0 then
> msg = "Misspelled : " & objDocument.Wor ds(i).text & vblf &
> "<br>"
> 'Yes, there are errors, see if there are any suggestions
> for xSuggestions = 1 to
> objDocument.Wor ds(i).GetSpelli ngSuggestions.c ount
> if xSuggestions = 1 then
> msg = msg & vblf & "Suggestion s: " &
> objDocument.Wor ds(i).GetSpelli ngSuggestions.I tem(1).Name
> else
> msg = msg & vblf & " " &
> objDocument.Wor ds(i).GetSpelli ngSuggestions.I tem(xSuggestion s).Name
> end if
> next
> Response.Write msg
> else
> end if
> i = i + 1
> wend
> end If
> objDocument.sav eas "c:\t.doc"
> objDocument.clo se false
> set objDocument = nothing
> objWord.quit false
> Response.Write "Spell check is finished!"
> end function
> %>[/color]

You are trying to call a function defined on the server from client-side
JavaScript. This of course, will not work. When a request for this page
arrives at your server, IIS loads the .asp page, parses and executes
anything between <% and %> and sends the resulting *HTML* (and possibly
client-side JavaScript) to your client.

Once the document is at the client, the only thing client-side
JavaScript has access to is client-side code. As far as the server is
concerned, the client is gone, done, finished. The server-side code has
been parsed, executed and the result returned to the client, that
function is simply not available to client-side JavaScript (although it
would be available to code that might need it while that page is being
executed by IIS).

There are a variety of ways of calling server-side code from the client,
but given the fact that you haven't yet grasped the concept of
server/client separation, it would probably be fairly confusing to bring
them up and how they could be used to implement a client-side
spellchecker.

--
| Grant Wagner <gwagner@agrico reunited.com>

* Client-side Javascript and Netscape 4 DOM Reference available at:
*

http://devedge.netscape.com/library/manuals/2000/javascript/1.3/reference/frames.html

* Internet Explorer DOM Reference available at:
*

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* Netscape 6/7 DOM Reference available at:
* http://www.mozilla.org/docs/dom/domref/
* Tips for upgrading JavaScript for Netscape 7 / Mozilla
* http://www.mozilla.org/docs/web-deve...upgrade_2.html