Setting an selected attribute in ChannelBox

[joeman70]

HOping someone can help me on this simple script. Basically I am just trying to set the value of a selected attribute (more specifically a custom attribute on a rig. Not something like Trans, Rot or Scale) from the ChannelBox to '0' with this little script.

This is what I have so far but it doesn't work:
$object = ls -sl;
$attribute = channelBox -q -sma mainChannelBox;
for ($item in $object)
{
setAttr ($item + ".$attribute") 0;
}

I get the following error when I try this:
// Error: line 5: setAttr: Invalid object name: [nameOfSelectedObject].$attribute //

Any ideas? Any help would be great! Thanks!

[charliewales]

//This only works fir the first selected attribute

string $object[] = ls -sl;
string $attribute[] = channelBox -q -sma mainChannelBox;
for ($item in $object)
{
    setAttr ($item + "." + $attribute[0]) 0;
}

//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////

//This works with every selected attribute

string $object[] = ls -sl;
string $attribute[] = channelBox -q -sma mainChannelBox;
for ($item in $object)
    for($attr in $attribute)
        setAttr ($item + "." + $attr) 0;

[joeman70]

THANKS, CharlieWales!!! Works like a charm!!!