Cannot click a button using the value

[GoogleCodeExporter]

Have a html like his 
<button type="submit">Sign In</button>
cannot click using 
ff.button(:value, "Sign In").to_s

Error :
c:/ruby/lib/ruby/gems/1.8/gems/firewatir-
1.0.2/./MozillaBaseElement.rb:810:in `assert_exists': Unable to locate 
object, using value and Sign In 
(FireWatir::Exception::UnknownObjectException)
    from c:/ruby/lib/ruby/gems/1.8/gems/firewatir-
1.0.2/./MozillaBaseElement.rb:969:in `click'
    from FireWatir1.rb:12

Original issue reported on code.google.com by prema.a...@gmail.com on 2 Apr 2007 at 12:47

[GoogleCodeExporter]

Original comment by prema.a...@gmail.com on 16 Apr 2007 at 5:46

• Changed state: Fixed
• Added labels: ****
• Removed labels: ****

[GoogleCodeExporter]

Original comment by prema.a...@gmail.com on 22 Jun 2007 at 10:09

• Changed state: Verified
• Added labels: ****
• Removed labels: ****