Macintosh and FileReference Type in Flex

In Mac, the Type attribute of the filereference object returns null by default and this is a huge problem, considering that the type attribute works by default for the PC.


private function getMacExtension(myExtension:String,myName:String):String {
if (myExtension == null) {
if (myName.lastIndexOf(".") > 0) {
myExtension = myName.substr(myName.lastIndexOf("."), myName.length);
myExtension = myExtension.toLowerCase();
}
}
return myExtension;
}