XPath For Returning the Column Index
You can get the column index by using selenium.getXpathCount('/html/body/table/tbody/tr/td')
and then iterating over the range with selenium.getText('xpath=(/html/body/table/tbody/tr/td)[' + i + ']')
until it returns "Something". Remember to count from 1 to n, not 0 to n-1 - XPath counts from 1, not from 0 like many programming languages.