How would you go about limiting file upload

I don't need source code, just want to know if it's possible or how to go about limiting how many files a user can upload.
So far
I can limit what types of files get uploaded.
I can limit how big those files can be.
Is it possible, or how would you go about limiting how many files get sent?
- When the user does a browse they can select multiple files.

This is the best that I can come up with.
Ripped from adobe cookbooks
var fileList:Array = fileReferenceList.fileList;
if( fileList.length > 4 )
    Alert.show("Too many files" , "Please try again with 4 or less files");
else
   for (var i:Number=0; i<fileList.length; i++)
       var file:FileReference = FileReference(fileList[i]);
       arrayCollection.addItem({name:file.name, size:file.size, object:file})
If this post was helpful , please mark it as such.

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jverd wrote:
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