title: imacros - ignore code if tag not found
body: <pre><code>URL GOTO=my site
  TAG POS=1 TYPE=INPUT:TEXT FORM=NAME:login ATTR=NAME:name CONTENT=name
  SET !ENCRYPTION NO
  TAG POS=1 TYPE=INPUT:PASSWORD FORM=NAME:login ATTR=NAME:password CONTENT=pass
  TAG POS=1 TYPE=BUTTON FORM=NAME:login ATTR=ID:s1
  WAIT SECONDS=3
  ONDOWNLOAD FOLDER=* FILE=image.jpg WAIT=YES
  TAG POS=1 TYPE=IMG ATTR=HREF:*captcha* CONTENT=EVENT:SAVEPICTUREAS
  WAIT SECONDS=3
  TAB OPEN
  TAB T=2
  SET !EXTRACT_TEST_POPUP NO
  URL GOTO=site of service
  WAIT SECONDS=3
  TAG POS=1 TYPE=INPUT:TEXT FORM=... ATTR=NAME:username CONTENT=...
  TAG POS=1 TYPE=INPUT:TEXT FORM=ACTION:... ATTR=NAME:password CONTENT=...
  TAG POS=1 TYPE=INPUT:FILE FORM=ACTION:... ATTR=NAME:pict CONTENT=image.jpg
  TAG POS=1 TYPE=INPUT:SUBMIT FORM=ACTION:... ATTR=VALUE:Send
  WAIT SECONDS=3
  TAG POS=6 TYPE=TD ATTR=* EXTRACT=TXT
  SET !CLIPBOARD {{!EXTRACT}}
  tab close
  TAB T=1
  TAG POS=1 TYPE=INPUT:TEXT FORM=NAME:login ATTR=ID:recaptcha_response_field CONTENT={{!CLIPBOARD}}
  TAG POS=1 TYPE=BUTTON FORM=NAME:login ATTR=ID:s1
  WAIT SECONDS=3
  </code></pre>
  
  <p>I use this code to solve the CAPTCHA ..</p>
  
  <p>Sometimes there is no CAPTCHA ..</p>
  
  <p>I want to make this code only works if there is CAPTCHA ..</p>
  
  <p>In the case of non-appearance of CAPTCHA (or image to save) ignores the following lines ..</p>
  
  <p>I heard that this is possible through Javascript ..</p>
  
  <p>But I can not find a way to do that ..</p>
  
  <p>Any Help? ..</p>