cross browser check box functionality

[nicasa]

HI Gurus,

I have created a simple function that enables a text field if a check box is ticked. (and vice versa)
Here is the code ...

<input name = "vm_box" type = "checkbox" onClick="enableField('vm_pin', 'vm_box')" />
<input name = "vm_pin" type = "text" maxlength = "5" disabled />

function enableField(text_id, vm_box_id)
{
var a = document.getElementById(vm_box_id);
var e = document.getElementById(text_id);
if (a.checked)
{
e.disabled=false;
e.focus();
}
else
{
e.disabled=true;
e.value = "";
}
}

It works fine in MS IE but not in firefox. I have tried changing it but I cannot get it to work in BOTH browsers.

Does anyone have any ideas ?

regards,

Steven Matthews

 

[dwarfthrower]

You haven't set the id attributes in your HTML.

[sub]Never be afraid to share your dreams with the world.
There's nothing the world loves more than the taste of really sweet dreams.[/sub]
Webflo

 

[trollacious]

IE allows sloppy coding, which this is an example of. If you're only going to use names, you need to use document.getElementsByName() and then refer to the first object in the array (even if there's only object with that name, it'll be in an array).

Lee

 

[nicasa]

THanks guys, my problem is now solved !

Steven M