Also, can you define this variables in the top of the context? Also can you rename the variable to a more meaningful name? Meaningful name help by adding business value, please see: http://en.wikipedia.org/wiki/Naming_convention_(programming)#Business_value

e.g.

resizePageMeta = function() { 

     var t0 
         , t1 // this can be named topOffsetHeight
         , t2
         , t3
         , sidebarHeight
         ;


}

Also, can you remove:

console.log(sidebarHeight);

YUI3 have a convenient method know as Y.log(). Using Y.log prevents from errors the users can experiences by using a browser that does not have the console object defined.

If you must use console.log; please make sure you test for it by doing something like:

if (console) console.log()

Take in consideration that this is a developers tool and should be remove from the codebase before pushing to production. I know we once in a while forget to remove it (been there and done that).