Retrieving Form Value

**Mick White** · Jul 23 '05, 08:35 PM

Re: Retrieving Form Value

Cognizance wrote:
[color=blue]
> I need a solution for the following, if anyone can think of one. :)
>
> I have:
> 1 form on the page. (no name, no id value set.)
> 3 hidden form elements named: catalog, vwoidc, oid
>
> !!! I can only include the javascript right after the body tag. The
> form is found near the end of the loaded page.
>[/color]

<body>
<script type="text/javascript">
onload=function (){ //do stuff with document.forms[0] }
</script>

Mick
[color=blue]
>
> <form action="actionU RL" method=post>
> <input type=hidden name=catalog value=store>
> <input type=hidden name=vwoidc value=69a6e1deb 02417250691>
> <input type=hidden name=oid value=60323></form>
>
> Everything I've tried needs to have the javascript executed after the
> page has been fully loaded.
>
> Thanks in advance!!
>[/color]

**ASM** · Jul 23 '05, 08:35 PM

Re: Retrieving Form Value

Cognizance wrote:[color=blue]
>
> Everything I've tried needs to have the javascript executed after the
> page has been fully loaded.[/color]

yes of course.
JS can't read or write-in thomething that doesn't yet append

--
Stephane Moriaux et son [moins] vieux Mac

**Randy Webb** · Jul 23 '05, 08:35 PM

Re: Retrieving Form Value

ASM wrote:[color=blue]
> Cognizance wrote:[color=green]
> >[/color]
>[color=green]
>> Everything I've tried needs to have the javascript executed after the
>> page has been fully loaded.[/color]
>
>
> yes of course.[/color]

No, not of course. JS doesnt need the page fully loaded, it needs what
you are trying to access rendered/loaded.

Create a test page that has 80,000 lines. At the top, right after the
body, add a script block with an alert that does something with the
previous code and you will be surprised that it will indeed read it
before the page has loaded.

--
Randy
comp.lang.javas cript FAQ - http://jibbering.com/faq & newsgroup weekly

**Matt Kruse** · Jul 23 '05, 08:35 PM

Re: Retrieving Form Value

Randy Webb wrote:[color=blue]
> No, not of course. JS doesnt need the page fully loaded, it needs what
> you are trying to access rendered/loaded.[/color]

Is that necessarily true for all browsers?

I remember some version of Netscape in the past that wouldn't expose any
part of the document until it was done loading. So, putting <script> at the
end of the <body> didn't work because you still couldn't access the
contents.

I've always wondered if any specs require that content be made available to
script as soon as it is parsed, or if a browser could choose not to expose
anything to script until everything is loaded.

--
Matt Kruse

JavascriptToolbox.com - Domain for sale

http://www.JavascriptToolbox.com

**Cognizance** · Jul 23 '05, 08:36 PM

Re: Retrieving Form Value

I tried Mick's suggestion, and it seems to be the same issue. When I
place the following at the end of the page (just before /body) it will
work:

onload=test();
function test(){
var iName = document.forms[0].elements[0].value;
alert(iName);

However, if it's at the top just after the body tag (where this script
will be included) it will not work.

Randy, I'm not sure I understand your suggestion. I'm not too great
with javascript. Still just getting by. Could you please help clarify?

**Randy Webb** · Jul 23 '05, 08:36 PM

Re: Retrieving Form Value

Cognizance wrote:[color=blue]
> I tried Mick's suggestion, and it seems to be the same issue. When I
> place the following at the end of the page (just before /body) it will
> work:
>
> onload=test();
> function test(){
> var iName = document.forms[0].elements[0].value;
> alert(iName);[/color]

It happened to work in a scenario, but it will not always work. The
reason is that you shouldn't have the () on the first test.
You are also missing a } at the end of your function.
It should be:

window.onload = test;

When the browser sees the test() as you have it, it executes the
function right then, not after onload fires.
[color=blue]
> However, if it's at the top just after the body tag (where this script
> will be included) it will not work.[/color]

See above.
[color=blue]
> Randy, I'm not sure I understand your suggestion. I'm not too great
> with javascript. Still just getting by. Could you please help clarify?[/color]

Try reading the FAQ with regards to posting/quoting.

--
Randy
comp.lang.javas cript FAQ - http://jibbering.com/faq & newsgroup weekly

**Cognizance** · Jul 23 '05, 08:36 PM

Re: Retrieving Form Value

Randy Webb wrote:[color=blue]
> It happened to work in a scenario, but it will not always work. The
> reason is that you shouldn't have the () on the first test.
> You are also missing a } at the end of your function.
> It should be:
>
> window.onload = test;
>
> When the browser sees the test() as you have it, it executes the
> function right then, not after onload fires.[/color]

Sweet. That does the trick!! Thanks!

[color=blue]
> Try reading the FAQ with regards to posting/quoting.[/color]
Are you referring to the FAQ referenced in your sig?
(http://jibbering.com/faq)

**Randy Webb** · Jul 23 '05, 08:36 PM

Re: Retrieving Form Value

Cognizance wrote:
[color=blue]
>
> Randy Webb wrote:
>[color=green]
>>It happened to work in a scenario, but it will not always work. The
>>reason is that you shouldn't have the () on the first test.
>>You are also missing a } at the end of your function.
>>It should be:
>>
>>window.onlo ad = test;
>>
>>When the browser sees the test() as you have it, it executes the
>>function right then, not after onload fires.[/color]
>
>
> Sweet. That does the trick!! Thanks!
>[/color]

Welcome.
[color=blue]
>[color=green]
>>Try reading the FAQ with regards to posting/quoting.[/color]
>
> Are you referring to the FAQ referenced in your sig?
> (http://jibbering.com/faq)[/color]

Yes.

--
Randy
comp.lang.javas cript FAQ - http://jibbering.com/faq & newsgroup weekly

**Mick White** · Jul 23 '05, 08:36 PM

Re: Retrieving Form Value

Cognizance wrote:[color=blue]
> I tried Mick's suggestion, and it seems to be the same issue. When I
> place the following at the end of the page (just before /body) it will
> work:
>
> onload=test();
> function test(){
> var iName = document.forms[0].elements[0].value;
> alert(iName);
>
> However, if it's at the top just after the body tag (where this script
> will be included) it will not work.
>[/color]

I didn't suggest the stuff above, rather I suggested using an anonymous
function:
<body>
<script type="text/javascript">
onload=function (){alert(docume nt.forms[0].elements[0].value);}
</script>

Mick

**Cognizance** · Jul 23 '05, 08:37 PM

Re: Retrieving Form Value

I have another question...

Mick White wrote:[color=blue]
> I didn't suggest the stuff above, rather I suggested using an anonymous
> function:
> <body>
> <script type="text/javascript">
> onload=function (){alert(docume nt.forms[0].elements[0].value);}
> </script>
>
> Mick[/color]

Sorry for the confusion, Mick. I was able to get the function to
execute properly. My current script looks like:



Now what I need to do... I need to somehow be able to "hit" the loadURL
that's created. Is there a way to hit an URL without losing the current
document loaded?

**Mick White** · Jul 23 '05, 08:37 PM

Re: Retrieving Form Value

Cognizance wrote:
[color=blue]
>
> Sorry for the confusion, Mick. I was able to get the function to
> execute properly. My current script looks like:
>
> 
>
> Now what I need to do... I need to somehow be able to "hit" the loadURL
> that's created. Is there a way to hit an URL without losing the current
> document loaded?[/color]

var w=window.open(l oadURL) perhaps?
Mick

**Cognizance** · Jul 23 '05, 08:37 PM

Re: Retrieving Form Value

Mick White wrote:[color=blue][color=green]
> > Now what I need to do... I need to somehow be able to "hit" the loadURL
> > that's created. Is there a way to hit an URL without losing the current
> > document loaded?[/color]
>
> var w=window.open(l oadURL) perhaps?
> Mick[/color]

This seems to want to spawn a new browser window. I want it to be
transparent to the client. I want to keep the initial main page loaded,
and only want to hit the url determined by the javascript, keeping the
main page in view.

Is there a way to hit a URL in the background?

**Cognizance** · Jul 23 '05, 08:37 PM

Re: Retrieving Form Value

> This seems to want to spawn a new browser window. I want it to be[color=blue]
> transparent to the client. I want to keep the initial main page loaded,
> and only want to hit the url determined by the javascript, keeping the
> main page in view.
>
> Is there a way to hit a URL in the background?[/color]

Well gang, I've figured out a way to accomplish what I needed!

<script language="javas cript">

</script>

Using the preload concept, I'm able to hit the URL in question.

Thanks to those who tried to hook me up with this one! ^^

**Lee** · Jul 23 '05, 08:37 PM

Re: Retrieving Form Value

Cognizance said:
[color=blue]
><script language="javas cript">
>
></script>[/color]

I didn't look at your problem (which you seem to have solved),
but the above bits should be replaced by:

<script type="text/javascript">
</script>

The comments no longer serve any purpose, since there hasn't
been a browser in use in some time that doesn't understand
the <script> tag.

Retrieving Form Value

Retrieving Form Value

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