Access contents of dynamically generated iframe in Selenium -

i want use xpath (or other selenium dsl locator) access dynamically created iframe. goal make assertions contents of dynamic iframe.

the iframe not have id , has following html attributes:

src="javascript:""" style="position: absolute; left: -2000px;" 

if can somehow selectframe iframe, can asserttext or use xpath test iframe innards.

however, simple approaches seem fail. selectframe("index=0") fails reason. perhaps need way waitfor iframe loaded. can't seem create locator identifier iframe, can't waitfor it.

have tried these tips selenium docs?

selectframe ( locator ) selects frame within current window. (you may invoke command multiple times select nested frames.) select parent frame, use "relative=parent" locator; select top frame, use "relative=top". may use dom expression identify frame want directly, this: dom=frames["main"].frames["subframe"]

http://release.seleniumhq.org/selenium-core/0.8.0/reference.html