Can't locate button with watir using firefox

Question

Have tried multiple variations. Even used Testwise 3 recorder to see if it came up with something different. For some reason, I can't get watir to click on this OK button. It just keeps saying assert_exists : unable to locate element. I'm using Firefox 15.

$browser.button(:value,"OK").click

Ideas?

<TABLE  BORDER="0" CELLPADDING="1" CELLSPACING="4" summary="">
<TR>
<TD><INPUT TYPE="BUTTON" VALUE="OK"     onClick="javascript:buttonSubmit('OK')" CLASS="OraButton"></TD>
<TD><INPUT TYPE="BUTTON" VALUE="Cancel" onClick="javascript:buttonSubmit('CANCEL')" CLASS="OraButton"></TD>
</TR>
</TABLE>

Answer 1

It looks like watir-webdriver (or selenium-webdriver) is case-sensitive when looking for the input's type attribute value.

I was able to get it to work by either fixing the HTML:

<INPUT TYPE="button" VALUE="OK" onClick="javascript:buttonSubmit('OK')" CLASS="OraButton">

Or using an xpath locator:

$browser.button(:xpath, '//INPUT[@TYPE="BUTTON"]').click