Update Facebook grabber video script

I Own a script for downloading facebook videos it catch most url kinds of facebook videos but i want to decrease some urls can be catches if the fb video url auto redirect before loading 1- i want also to make any inputed url in the form to be redirected from [login to view URL] to be [login to view URL] if inputed url is : [login to view URL] auto redirect to this : [login to view URL] 2- my script couldn't catch this kind of facebook video url : [login to view URL] but if the script auto redirect the url to : [login to view URL] i knew that when i tried to download the url from [login to view URL] site 3- i want to to hide if HD url is nulled to be hidden 4- i want to remove unnessary js code in my file cause this script is 3 scripts in one