accessing javascript variables in HTML

ksr

Hello,

I have a HTML page, which loads an activeX control in the browser.
In the <HEADsection, I have javascript similar to the following,

<SCRIPT language="JavaScript">
var Index = "";
// do some processing which sets a value to variable Index
</SCRIPT>

In the <BODYsection, I am downloading the cab file, which is an
activeX control, so the code is,

<BODY TEXT="#000000" BGCOLOR="#FFFFFF"..........>
<OBJECT ID="objID" CLASSID=...."CODEBASE="..>
<param name="name" value=..>.

</OBJECT>
</BODY>
</HTML>

In the param name=value pair, I want to assign the variable Index to
value. Just by doing value=Page, it does not work. Could someone
suggest how I can access javascript variable here?

Thankyou.

Aug 25 '06 #1

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13133

Laurent Bugnion

Hi,

ksr wrote:

Hello,

I have a HTML page, which loads an activeX control in the browser.
In the <HEADsection, I have javascript similar to the following,

<SCRIPT language="JavaScript">
var Index = "";
// do some processing which sets a value to variable Index
</SCRIPT>

In the <BODYsection, I am downloading the cab file, which is an
activeX control, so the code is,

<BODY TEXT="#000000" BGCOLOR="#FFFFFF"..........>
<OBJECT ID="objID" CLASSID=...."CODEBASE="..>
<param name="name" value=..>.

</OBJECT>
</BODY>
</HTML>

In the param name=value pair, I want to assign the variable Index to
value. Just by doing value=Page, it does not work. Could someone
suggest how I can access javascript variable here?

Thankyou.

HTML is a static language, so it cannot access JavaScript variables. It
has to go the other way round, with JavaScript setting the HTML value.
Thankfully, with DOM Level 2 it has become much easier to do this kind
of things.

My suggestion is to set an ID on your PARAM node, and then use
document.getElementById to get it.

<param name="name" id="name" value="...">

Note that the ID must be unique throughout the whole HTML document.

Then:

var nParam = document.getElementById( "name" );
if ( nParam != null )
{
nParam.setAttribute( "value", Index );
}
HTH,
Laurent
--
Laurent Bugnion, GalaSoft
Software engineering: http://www.galasoft-LB.ch
PhotoAlbum: http://www.galasoft-LB.ch/pictures
Support children in Calcutta: http://www.calcutta-espoir.ch

Aug 26 '06 #2

ksr

Thanks for your reply.
I am new to DOM.
Can you post an example (syntax), for html page similar to that I
posted?
Thankyou.

Laurent Bugnion wrote:

Hi,

ksr wrote:
Hello,

I have a HTML page, which loads an activeX control in the browser.
In the <HEADsection, I have javascript similar to the following,

<SCRIPT language="JavaScript">
var Index = "";
// do some processing which sets a value to variable Index
</SCRIPT>

In the <BODYsection, I am downloading the cab file, which is an
activeX control, so the code is,

<BODY TEXT="#000000" BGCOLOR="#FFFFFF"..........>
<OBJECT ID="objID" CLASSID=...."CODEBASE="..>
<param name="name" value=..>.

</OBJECT>
</BODY>
</HTML>

In the param name=value pair, I want to assign the variable Index to
value. Just by doing value=Page, it does not work. Could someone
suggest how I can access javascript variable here?

Thankyou.

HTML is a static language, so it cannot access JavaScript variables. It
has to go the other way round, with JavaScript setting the HTML value.
Thankfully, with DOM Level 2 it has become much easier to do this kind
of things.

My suggestion is to set an ID on your PARAM node, and then use
document.getElementById to get it.

<param name="name" id="name" value="...">

Note that the ID must be unique throughout the whole HTML document.

Then:

var nParam = document.getElementById( "name" );
if ( nParam != null )
{
nParam.setAttribute( "value", Index );
}
HTH,
Laurent
--
Laurent Bugnion, GalaSoft
Software engineering: http://www.galasoft-LB.ch
PhotoAlbum: http://www.galasoft-LB.ch/pictures
Support children in Calcutta: http://www.calcutta-espoir.ch

Aug 27 '06 #3

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