newby question joining variables and strings together

im pretty ne to java script - so please be gentle

basically what i want to do is construct an action in a function using a
variable sent to that function


ok - what i want to do is

function ($number)
{
form1.button[add in the $number here].disabled=true;
}

say $number was 34, so in effect i would end up with

function ($number)
{
form1.button34.disabled=true;
}

i have tried all sorts but cnt seem to get the result i want - any advice
would be great

chris wrote:

im pretty ne to java script - so please be gentle

basically what i want to do is construct an action in a function using a
variable sent to that function


ok - what i want to do is

function ($number)
{
form1.button[add in the $number here].disabled=true;
}

say $number was 34, so in effect i would end up with

function ($number)
{
form1.button34.disabled=true;
}

i have tried all sorts but cnt seem to get the result i want - any advice
would be great

I believe the effect you want to achieve is the following:

function myFunc(btnNum)
{
document.forms["formName"].elements["button" + btnNum].disabled =
true;
}

Hope this helps.

["Followup-To:" header set to alt.comp.lang.javascript.]
On 2005-09-21, chris <someone (AT) here (DOT) com> wrote:

im pretty ne to java script - so please be gentle

basically what i want to do is construct an action in a function using a
variable sent to that function


ok - what i want to do is

function ($number)
{
form1.button[add in the $number here].disabled=true;
}

say $number was 34, so in effect i would end up with

function ($number)
{
form1.button34.disabled=true;
}

this appears to be what you are trying to di,
it may work (I have not tested it).
but it is non-standard and will cause warnings in mozilla, and may not at all in
other browsers.

function ($number)
{
eval("form1.button"+$number+".disabled=true;");
}

you should be using document.GetElementById

this means giving any element you want to refer to an id tag.
that means you can have non-submitted form inputs by not giving
them a name tag.

Bye.
Jasen