Selenium doTypeJsxTextbox

public static void doFireTypeEvent(String typeLocator,String typeText)throws Exception{

    jsx.doTypeJsxTextbox(typeLocator,typeText);
  Thread.sleep(timeout/3);
  browser.keyDown(typeLocator, "\27");
  browser.keyDown(typeLocator, "\16");
  browser.keyDown(typeLocator, "\37");
  browser.keyUp(typeLocator, "\16");
  browser.keyUp(typeLocator, "\37");
  jsx.doTypeJsxTextbox(typeLocator,typeText);
  Thread.sleep(timeout);
  }