Popup handling in FireWatir

Ruby
1

Hi,

I am working on firewatir.and i tried using
following code to handle popup

ff.image(:alt , “SUBMIT button”).click_no_wait
ff.click_jspopup_button(“OK”)

But i am getting the error----------NoMethodError: undefined method
`click_jspopup_button’ for #FireWatir::Firefox:0x2c39fb8 from (irb):18

please help me to handle popup in firewatir.
Thanks in advance.

regards
sindhu