} else if ("iexplore".equalsIgnoreCase(browser)) {
driver = new InternetExplorerDriver();
} else if ("chrome".equalsIgnoreCase(browser)) {
driver = new ChromeDriver();
} else if ("safari".equalsIgnoreCase(browser)) {
driver = new SafariDriver();
} else if ("htmlUnit".equalsIgnoreCase(browser)) {
driver = new HtmlUnitDriver();
} else if ("htmlUnit+js".equalsIgnoreCase(browser)) {
driver = new HtmlUnitDriver(true);
} else if ("opera".equalsIgnoreCase(browser)) {