Partial Formatting of Header Text

Hello,

So I 'm not sure if this is possible. I am trying to pulling data from two separate text boxes and have them italicized and placed into the header of my sheet. My code is as follows:

Please Login or Register  to view this content.

I have noticed that the basic &I command doesn't work on the textbox commands. I was thinking about italizing the entire header, however, I need the "Title" to remain bold and uninitialized. Thanks for your help!

Cheers,

Emerson