Set a properti of an array of objects

[Alejandro Narancio]

Hello my name is Alejandro and i've a question.
I need to make a functions with this characteristics :
- params: an array of strings with the names of components in a page
(for example, some inputs)
- body: i need to assign to the property readOnly the value true for
all the objects in the array

Anybody know how can i do this?

Thanks,

Alejandro

[Lasse Reichstein Nielsen]

Re: Set a properti of an array of objects

a_narancio@hotm ail.com (Alejandro Narancio) writes:
[color=blue]
> I need to make a functions with this characteristics :
> - params: an array of strings with the names of components in a page
> (for example, some inputs)
> - body: i need to assign to the property readOnly the value true for
> all the objects in the array
>
> Anybody know how can i do this?[/color]

There is a problem with this. *Names* of input controls are only
meaningfull in the scope of the form they are in. Two different forms
can have controls with the same names. That means that a *name* is not
necessarily unique for elements in a page. The id attribute should
give unique identifiers, but you don't always use those on input elements.

With that in mind, here is a function:
---
function setReadOnly(nam es,scope) {
scope = scope || document; // default to document
var hasGEBN = Boolean(scope.g etElementsByNam e);
for (var i=0;i<names.len gth;i++) {
var elems = hasGEBN?scope.g etElementsByNam e(names[i]):
scope.all[names[i]];
for (var j=0;j<elems.len gth;j++) {
elems[j].readOnly = true;
}
}
}
---
You can call it as
---
setReadOnly(["foo","bar","ba z"]);
---
or, if you know which form the controls are in,
---
setReadOnly(["input1","input 2","input3"],document.forms['myForm']);
---

Good luck
/L
--
Lasse Reichstein Nielsen - lrn@hotpop.com
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