Setting Description Error

I have set the description of file by the following code:
$au.uploader('uploaderID').files().get(index).description(value);

But it just showing me yellow image on file and not displaying any description on it.

How can we just display description on files instead of showing yellow image. Please check attach image for details

Edited by user Thursday, August 4, 2011 2:31:05 AM(UTC)  | Reason: Not specified

i have added description in this manner.
$au.uploader('uploaderID').files().get(index).description(value);

But its not showing tooltip. Do we need to enable any more property for it

Edited by user Thursday, August 4, 2011 11:23:46 PM(UTC)  | Reason: Not specified

function itemChange(){
try {

if ($au.uploader('<%= imageUploader1.ClientID %>')) {

//Compile the string with ordered formats.
var description = "hello";


//Update desriptions of selected items and write ordered formats information into it.
for (var i = 0; i < $au.uploader('<%= imageUploader1.ClientID %>').files().count(); i++) {
if ($au.uploader('<%= imageUploader1.ClientID %>').files().get(i).selected()) {

$au.uploader('<%= imageUploader1.ClientID %>').files().get(i).description(description);


}
//else { $au.uploader('<%= imageUploader1.ClientID %>').files().get(i).description(""); }
}
}
}
catch(ex){}
}

function itemChange is called on dropdown selection change and is working fine. I have alert this $au.uploader('<%= imageUploader1.ClientID %>').files().get(i).description(description); and its showing me value. but not showing onhover. Aurigma Dll version is 7.0.28.0

Edited by user Saturday, August 6, 2011 12:01:37 AM(UTC)  | Reason: Not specified