@ie_driver = Selenium::SeleniumDriver.new(rc_host, port, "*iexplore", url, 1000)
@ie_driver.start 
@ie_driver.whatever //Test code
@ff_driver = Selenium::SeleniumDriver.new(rc_host, port, "*firefox", url, 1000)
@ff_driver.start  
@ff_driver.whatever //Test code
@ff_driver.stop
@ie_driver.whatever //Continue test code with IE
@ie_driver.stop