function ShowKeyboard()
{
  try
  {
    window.external.ShowKeyboard(1);
  }
  catch (err)
  {
  }
}

function HideKeyboard()
{
  try
  {
    window.external.ShowKeyboard(0);
  }
  catch (err)
  {
  }
}

function ShowKeyboardReplaceEnter()
{
  try
  {
    window.external.ShowKeyboardReplaceEnter(1, 0);
  }
  catch (err)
  {
  }  
}