Yikes!! (I lost my Effects Tab) .. Simple Question

Greetings all. I was editing a video on my copy of Premiere pro CS5 today and I somehow lost my effects tab.

Where is says Audio mixer, thats where I used to be able to go on the Effects tab. I just want help getting it back.

I was not paying attention when it happened but I lost it because for some reason one time I looked at it and it was in a seperate window up there. Not sure if its supposed to be but I wasn't buying it and I clicked the cross, then realised the tab is gone.

I have tried to set the layout to something else then back to editing and its still missing.

I just want to know how to enable the Effects tab. Thanks for your time.