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set value of hidden field

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Oct 28.2004

hi!

i got a hidden field : [COLOR=green]<html:hidden property=”addThisUser2Group” value=””/>[/COLOR]

and i want to set the value of this field to “userArray”

[COLOR=green]<html:form action=”jsp/addUser2Group.do” focus=”username” onsubmit=”getThisUsers();”>[/COLOR]

this is my getThisUsers() function:
[COLOR=green]function getThisUsers()
{
var userArray = top.parent.foundUsers.getUsers2AddJS();
document.addThisUser2Group.value = userArray;
}[/COLOR]

it just shows me all the time this error: ‘document.returnedUser.addThisUser2Group.value’is null or not an object

can somebody tell me what i am doing wrong?

thank you for your help!

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JavaScript

3 Comments(s) ↴

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@CharlesOct 28.2004 — Since you're not using HTML things get a little complicated and it is hard to figure out what is going on without the entire document but it looks like you are trying to use DOM level 1, chapter 2. DOM level 1, chapter 2 is reserved for HTML so you'll want to use DOM level 1, chapter 1. Give your element an "id" of say "addThisUser2Group" and assign to [font=monospace]document.getElementById('addThisUser2Group').value[/font].
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@7studOct 28.2004 — document.[color="red"]returnedUser[/color].addThisUser2Group.value is null or not an object

1)Where is [color="red"]returnedUser[/color]?

2)top.parent --> I don't think there is such a thing. How can something be 'top' if it has a parent?
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@grillauthorOct 28.2004 — charles, you're right! getElementById works!

thank you guys!
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