XPath: How do I find a frame with this name?

For the purposes of using xpath in a Selenium test, how do I write an Xpath expression where the name of my frame is "sb_player"? In my Fierbug console, I get this from my doc ...

window.frames[1].name
"sb-player"

but I can't figure out an equ开发者_如何学运维ivalent expression in Xpath to identify the frmae (//frames[1] doesn't work).

Thanks for your help, - Dave

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Did you try xpath like something below?

//frame[name='sb_player']