Is there a way to check that a resource pack loaded?

It's working. Is there a way to check for a specified pack? For example: Faithful pack?

I think I have to learn more Java because I can't make it to work, or I am simply stupid...

https://www.dropbox.com/s/0ie6jgl4aa9f2sn/asd.txt .  Not much.... My goal is: if my res. pack is loaded, the item appears in the creative tab. Else if the res. pack is missing the item disappears from the tab.

List entri = Minecraft.getMinecraft().getResourcePackRepository().getRepositoryEntries();

Iterator it = entri.listIterator();

Something like this? (Sorry I have never done something like this)

http://pastebin.com/2nn1G0yt I got this so far. Something like this maybe?

Sorry for wasting your time..